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Finding the Fourth Proportional to 5,007.70, 7,500.60 and 2,538.28

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Solution

The fourth proportional to 5,007.70, 7,500.60 and 2,538.28 is: 3,801.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,007.70 : 7,500.60 = 2,538.28 : x
  2. Step 2: Convert to fraction form
    5,007.70/7,500.60 = 2,538.28/x
  3. Step 3: Cross multiply
    5,007.70x = 7,500.60 × 2,538.28
  4. Step 4: Simplify right side
    5,007.70x = 19,038,622.97
  5. Step 5: Solve for x
    x = 19,038,622.97/5,007.70
  6. Step 6: Final answer
    x = 3,801.87

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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.