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Finding the Fourth Proportional to 5,947.32, 8,910.95 and 3,864.21

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Solution

The fourth proportional to 5,947.32, 8,910.95 and 3,864.21 is: 5,789.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,947.32 : 8,910.95 = 3,864.21 : x
  2. Step 2: Convert to fraction form
    5,947.32/8,910.95 = 3,864.21/x
  3. Step 3: Cross multiply
    5,947.32x = 8,910.95 × 3,864.21
  4. Step 4: Simplify right side
    5,947.32x = 34,433,762.78
  5. Step 5: Solve for x
    x = 34,433,762.78/5,947.32
  6. Step 6: Final answer
    x = 5,789.79

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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.