Home / 5,354.46-7,391.64-3,115.53

Finding the Fourth Proportional to 5,354.46, 7,391.64 and 3,115.53

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Solution

The fourth proportional to 5,354.46, 7,391.64 and 3,115.53 is: 4,300.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,354.46 : 7,391.64 = 3,115.53 : x
  2. Step 2: Convert to fraction form
    5,354.46/7,391.64 = 3,115.53/x
  3. Step 3: Cross multiply
    5,354.46x = 7,391.64 × 3,115.53
  4. Step 4: Simplify right side
    5,354.46x = 23,028,876.17
  5. Step 5: Solve for x
    x = 23,028,876.17/5,354.46
  6. Step 6: Final answer
    x = 4,300.88

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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.