Home / 3,039.47-4,557.10-1,555.05

Finding the Fourth Proportional to 3,039.47, 4,557.10 and 1,555.05

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Solution

The fourth proportional to 3,039.47, 4,557.10 and 1,555.05 is: 2,331.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,039.47 : 4,557.10 = 1,555.05 : x
  2. Step 2: Convert to fraction form
    3,039.47/4,557.10 = 1,555.05/x
  3. Step 3: Cross multiply
    3,039.47x = 4,557.10 × 1,555.05
  4. Step 4: Simplify right side
    3,039.47x = 7,086,518.36
  5. Step 5: Solve for x
    x = 7,086,518.36/3,039.47
  6. Step 6: Final answer
    x = 2,331.50

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Half scale
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Double scale
Find fourth proportional to 3,040.47, 4,558.60 and 1,556.05
Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.