Home / 7,743.18-11,614.95-2,479.20

Finding the Fourth Proportional to 7,743.18, 11,614.95 and 2,479.20

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Solution

The fourth proportional to 7,743.18, 11,614.95 and 2,479.20 is: 3,718.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,743.18 : 11,614.95 = 2,479.20 : x
  2. Step 2: Convert to fraction form
    7,743.18/11,614.95 = 2,479.20/x
  3. Step 3: Cross multiply
    7,743.18x = 11,614.95 × 2,479.20
  4. Step 4: Simplify right side
    7,743.18x = 28,795,784.04
  5. Step 5: Solve for x
    x = 28,795,784.04/7,743.18
  6. Step 6: Final answer
    x = 3,718.86

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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.