Home / 5,172.42-7,759.85-1,474.71

Finding the Fourth Proportional to 5,172.42, 7,759.85 and 1,474.71

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Solution

The fourth proportional to 5,172.42, 7,759.85 and 1,474.71 is: 2,212.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,172.42 : 7,759.85 = 1,474.71 : x
  2. Step 2: Convert to fraction form
    5,172.42/7,759.85 = 1,474.71/x
  3. Step 3: Cross multiply
    5,172.42x = 7,759.85 × 1,474.71
  4. Step 4: Simplify right side
    5,172.42x = 11,443,491.92
  5. Step 5: Solve for x
    x = 11,443,491.92/5,172.42
  6. Step 6: Final answer
    x = 2,212.40

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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.