Home / 5,565.38-7,680.49-3,081.38

Finding the Fourth Proportional to 5,565.38, 7,680.49 and 3,081.38

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Solution

The fourth proportional to 5,565.38, 7,680.49 and 3,081.38 is: 4,252.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,565.38 : 7,680.49 = 3,081.38 : x
  2. Step 2: Convert to fraction form
    5,565.38/7,680.49 = 3,081.38/x
  3. Step 3: Cross multiply
    5,565.38x = 7,680.49 × 3,081.38
  4. Step 4: Simplify right side
    5,565.38x = 23,666,462.17
  5. Step 5: Solve for x
    x = 23,666,462.17/5,565.38
  6. Step 6: Final answer
    x = 4,252.45

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Double scale
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1.5x scale

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.