Home / 5,402.28-7,454.60-3,986.74

Finding the Fourth Proportional to 5,402.28, 7,454.60 and 3,986.74

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Solution

The fourth proportional to 5,402.28, 7,454.60 and 3,986.74 is: 5,501.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,402.28 : 7,454.60 = 3,986.74 : x
  2. Step 2: Convert to fraction form
    5,402.28/7,454.60 = 3,986.74/x
  3. Step 3: Cross multiply
    5,402.28x = 7,454.60 × 3,986.74
  4. Step 4: Simplify right side
    5,402.28x = 29,719,552.00
  5. Step 5: Solve for x
    x = 29,719,552.00/5,402.28
  6. Step 6: Final answer
    x = 5,501.30

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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.