Home / 5,125.06-7,689.88-2,491.12

Finding the Fourth Proportional to 5,125.06, 7,689.88 and 2,491.12

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Solution

The fourth proportional to 5,125.06, 7,689.88 and 2,491.12 is: 3,737.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,125.06 : 7,689.88 = 2,491.12 : x
  2. Step 2: Convert to fraction form
    5,125.06/7,689.88 = 2,491.12/x
  3. Step 3: Cross multiply
    5,125.06x = 7,689.88 × 2,491.12
  4. Step 4: Simplify right side
    5,125.06x = 19,156,413.87
  5. Step 5: Solve for x
    x = 19,156,413.87/5,125.06
  6. Step 6: Final answer
    x = 3,737.79

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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.