Home / 5,172.76-7,759.14-4,257.06

Finding the Fourth Proportional to 5,172.76, 7,759.14 and 4,257.06

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Solution

The fourth proportional to 5,172.76, 7,759.14 and 4,257.06 is: 6,385.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,172.76 : 7,759.14 = 4,257.06 : x
  2. Step 2: Convert to fraction form
    5,172.76/7,759.14 = 4,257.06/x
  3. Step 3: Cross multiply
    5,172.76x = 7,759.14 × 4,257.06
  4. Step 4: Simplify right side
    5,172.76x = 33,031,124.53
  5. Step 5: Solve for x
    x = 33,031,124.53/5,172.76
  6. Step 6: Final answer
    x = 6,385.59

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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.