Home / 5,565.28-7,679.76-3,208.96

Finding the Fourth Proportional to 5,565.28, 7,679.76 and 3,208.96

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Solution

The fourth proportional to 5,565.28, 7,679.76 and 3,208.96 is: 4,428.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,565.28 : 7,679.76 = 3,208.96 : x
  2. Step 2: Convert to fraction form
    5,565.28/7,679.76 = 3,208.96/x
  3. Step 3: Cross multiply
    5,565.28x = 7,679.76 × 3,208.96
  4. Step 4: Simplify right side
    5,565.28x = 24,644,042.65
  5. Step 5: Solve for x
    x = 24,644,042.65/5,565.28
  6. Step 6: Final answer
    x = 4,428.18

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.