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Finding the Fourth Proportional to 3,555.66, 4,907.44 and 3,446.22

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Solution

The fourth proportional to 3,555.66, 4,907.44 and 3,446.22 is: 4,756.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,555.66 : 4,907.44 = 3,446.22 : x
  2. Step 2: Convert to fraction form
    3,555.66/4,907.44 = 3,446.22/x
  3. Step 3: Cross multiply
    3,555.66x = 4,907.44 × 3,446.22
  4. Step 4: Simplify right side
    3,555.66x = 16,912,117.88
  5. Step 5: Solve for x
    x = 16,912,117.88/3,555.66
  6. Step 6: Final answer
    x = 4,756.39

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Find fourth proportional to 1,777.83, 2,453.72 and 1,723.11
Half scale
Find fourth proportional to 7,111.32, 9,814.88 and 6,892.44
Double scale
Find fourth proportional to 3,556.66, 4,908.82 and 3,447.22
Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.