Home / 5,565.12-7,679.76-3,081.12

Finding the Fourth Proportional to 5,565.12, 7,679.76 and 3,081.12

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Solution

The fourth proportional to 5,565.12, 7,679.76 and 3,081.12 is: 4,251.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,565.12 : 7,679.76 = 3,081.12 : x
  2. Step 2: Convert to fraction form
    5,565.12/7,679.76 = 3,081.12/x
  3. Step 3: Cross multiply
    5,565.12x = 7,679.76 × 3,081.12
  4. Step 4: Simplify right side
    5,565.12x = 23,662,262.13
  5. Step 5: Solve for x
    x = 23,662,262.13/5,565.12
  6. Step 6: Final answer
    x = 4,251.89

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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.