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Finding the Fourth Proportional to 5,646.04, 8,469.62 and 1,947.79

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Solution

The fourth proportional to 5,646.04, 8,469.62 and 1,947.79 is: 2,921.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,646.04 : 8,469.62 = 1,947.79 : x
  2. Step 2: Convert to fraction form
    5,646.04/8,469.62 = 1,947.79/x
  3. Step 3: Cross multiply
    5,646.04x = 8,469.62 × 1,947.79
  4. Step 4: Simplify right side
    5,646.04x = 16,497,041.14
  5. Step 5: Solve for x
    x = 16,497,041.14/5,646.04
  6. Step 6: Final answer
    x = 2,921.88

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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.