Home / 7,681.91-11,522.45-2,487.38

Finding the Fourth Proportional to 7,681.91, 11,522.45 and 2,487.38

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Solution

The fourth proportional to 7,681.91, 11,522.45 and 2,487.38 is: 3,730.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,681.91 : 11,522.45 = 2,487.38 : x
  2. Step 2: Convert to fraction form
    7,681.91/11,522.45 = 2,487.38/x
  3. Step 3: Cross multiply
    7,681.91x = 11,522.45 × 2,487.38
  4. Step 4: Simplify right side
    7,681.91x = 28,660,660.29
  5. Step 5: Solve for x
    x = 28,660,660.29/7,681.91
  6. Step 6: Final answer
    x = 3,730.93

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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.