Home / 5,565.48-7,679.61-3,175.78

Finding the Fourth Proportional to 5,565.48, 7,679.61 and 3,175.78

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Solution

The fourth proportional to 5,565.48, 7,679.61 and 3,175.78 is: 4,382.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,565.48 : 7,679.61 = 3,175.78 : x
  2. Step 2: Convert to fraction form
    5,565.48/7,679.61 = 3,175.78/x
  3. Step 3: Cross multiply
    5,565.48x = 7,679.61 × 3,175.78
  4. Step 4: Simplify right side
    5,565.48x = 24,388,751.85
  5. Step 5: Solve for x
    x = 24,388,751.85/5,565.48
  6. Step 6: Final answer
    x = 4,382.15

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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.