Home / 5,742.30-8,613.45-3,992.70

Finding the Fourth Proportional to 5,742.30, 8,613.45 and 3,992.70

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Solution

The fourth proportional to 5,742.30, 8,613.45 and 3,992.70 is: 5,989.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,742.30 : 8,613.45 = 3,992.70 : x
  2. Step 2: Convert to fraction form
    5,742.30/8,613.45 = 3,992.70/x
  3. Step 3: Cross multiply
    5,742.30x = 8,613.45 × 3,992.70
  4. Step 4: Simplify right side
    5,742.30x = 34,390,921.82
  5. Step 5: Solve for x
    x = 34,390,921.82/5,742.30
  6. Step 6: Final answer
    x = 5,989.05

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Double scale
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Similar ratio
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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.