Home / 7,684.38-11,521.29-2,491.74

Finding the Fourth Proportional to 7,684.38, 11,521.29 and 2,491.74

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Solution

The fourth proportional to 7,684.38, 11,521.29 and 2,491.74 is: 3,735.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,684.38 : 11,521.29 = 2,491.74 : x
  2. Step 2: Convert to fraction form
    7,684.38/11,521.29 = 2,491.74/x
  3. Step 3: Cross multiply
    7,684.38x = 11,521.29 × 2,491.74
  4. Step 4: Simplify right side
    7,684.38x = 28,708,059.14
  5. Step 5: Solve for x
    x = 28,708,059.14/7,684.38
  6. Step 6: Final answer
    x = 3,735.90

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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.