Home / 4,781.52-7,172.55-1,859.58

Finding the Fourth Proportional to 4,781.52, 7,172.55 and 1,859.58

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Solution

The fourth proportional to 4,781.52, 7,172.55 and 1,859.58 is: 2,789.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,781.52 : 7,172.55 = 1,859.58 : x
  2. Step 2: Convert to fraction form
    4,781.52/7,172.55 = 1,859.58/x
  3. Step 3: Cross multiply
    4,781.52x = 7,172.55 × 1,859.58
  4. Step 4: Simplify right side
    4,781.52x = 13,337,930.53
  5. Step 5: Solve for x
    x = 13,337,930.53/4,781.52
  6. Step 6: Final answer
    x = 2,789.48

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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.