Home / 5,402.40-7,445.52-4,002.72

Finding the Fourth Proportional to 5,402.40, 7,445.52 and 4,002.72

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Solution

The fourth proportional to 5,402.40, 7,445.52 and 4,002.72 is: 5,516.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,402.40 : 7,445.52 = 4,002.72 : x
  2. Step 2: Convert to fraction form
    5,402.40/7,445.52 = 4,002.72/x
  3. Step 3: Cross multiply
    5,402.40x = 7,445.52 × 4,002.72
  4. Step 4: Simplify right side
    5,402.40x = 29,802,331.81
  5. Step 5: Solve for x
    x = 29,802,331.81/5,402.40
  6. Step 6: Final answer
    x = 5,516.50

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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.