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Finding the Fourth Proportional to 5,861.86, 8,791.86 and 1,966.30

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Solution

The fourth proportional to 5,861.86, 8,791.86 and 1,966.30 is: 2,949.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,861.86 : 8,791.86 = 1,966.30 : x
  2. Step 2: Convert to fraction form
    5,861.86/8,791.86 = 1,966.30/x
  3. Step 3: Cross multiply
    5,861.86x = 8,791.86 × 1,966.30
  4. Step 4: Simplify right side
    5,861.86x = 17,287,434.32
  5. Step 5: Solve for x
    x = 17,287,434.32/5,861.86
  6. Step 6: Final answer
    x = 2,949.14

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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.