Home / 3,918.14-5,877.22-1,322.90

Finding the Fourth Proportional to 3,918.14, 5,877.22 and 1,322.90

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Solution

The fourth proportional to 3,918.14, 5,877.22 and 1,322.90 is: 1,984.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,918.14 : 5,877.22 = 1,322.90 : x
  2. Step 2: Convert to fraction form
    3,918.14/5,877.22 = 1,322.90/x
  3. Step 3: Cross multiply
    3,918.14x = 5,877.22 × 1,322.90
  4. Step 4: Simplify right side
    3,918.14x = 7,774,974.34
  5. Step 5: Solve for x
    x = 7,774,974.34/3,918.14
  6. Step 6: Final answer
    x = 1,984.35

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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.