Home / 4,778.30-7,158.18-2,691.96

Finding the Fourth Proportional to 4,778.30, 7,158.18 and 2,691.96

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Solution

The fourth proportional to 4,778.30, 7,158.18 and 2,691.96 is: 4,032.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,778.30 : 7,158.18 = 2,691.96 : x
  2. Step 2: Convert to fraction form
    4,778.30/7,158.18 = 2,691.96/x
  3. Step 3: Cross multiply
    4,778.30x = 7,158.18 × 2,691.96
  4. Step 4: Simplify right side
    4,778.30x = 19,269,534.23
  5. Step 5: Solve for x
    x = 19,269,534.23/4,778.30
  6. Step 6: Final answer
    x = 4,032.72

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1.5x scale

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.