Home / 5,172.50-7,759.70-1,663.04

Finding the Fourth Proportional to 5,172.50, 7,759.70 and 1,663.04

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Solution

The fourth proportional to 5,172.50, 7,759.70 and 1,663.04 is: 2,494.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,172.50 : 7,759.70 = 1,663.04 : x
  2. Step 2: Convert to fraction form
    5,172.50/7,759.70 = 1,663.04/x
  3. Step 3: Cross multiply
    5,172.50x = 7,759.70 × 1,663.04
  4. Step 4: Simplify right side
    5,172.50x = 12,904,691.49
  5. Step 5: Solve for x
    x = 12,904,691.49/5,172.50
  6. Step 6: Final answer
    x = 2,494.87

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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.