Home / 3,909.44-5,397.36-3,472.04

Finding the Fourth Proportional to 3,909.44, 5,397.36 and 3,472.04

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Solution

The fourth proportional to 3,909.44, 5,397.36 and 3,472.04 is: 4,793.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,909.44 : 5,397.36 = 3,472.04 : x
  2. Step 2: Convert to fraction form
    3,909.44/5,397.36 = 3,472.04/x
  3. Step 3: Cross multiply
    3,909.44x = 5,397.36 × 3,472.04
  4. Step 4: Simplify right side
    3,909.44x = 18,739,849.81
  5. Step 5: Solve for x
    x = 18,739,849.81/3,909.44
  6. Step 6: Final answer
    x = 4,793.49

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.