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Finding the Fourth Proportional to 2,642.86, 3,964.33 and 1,000.18

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Solution

The fourth proportional to 2,642.86, 3,964.33 and 1,000.18 is: 1,500.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,642.86 : 3,964.33 = 1,000.18 : x
  2. Step 2: Convert to fraction form
    2,642.86/3,964.33 = 1,000.18/x
  3. Step 3: Cross multiply
    2,642.86x = 3,964.33 × 1,000.18
  4. Step 4: Simplify right side
    2,642.86x = 3,965,023.76
  5. Step 5: Solve for x
    x = 3,965,023.76/2,642.86
  6. Step 6: Final answer
    x = 1,500.28

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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.