Home / 3,909.04-5,864.56-2,881.28

Finding the Fourth Proportional to 3,909.04, 5,864.56 and 2,881.28

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Solution

The fourth proportional to 3,909.04, 5,864.56 and 2,881.28 is: 4,322.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,909.04 : 5,864.56 = 2,881.28 : x
  2. Step 2: Convert to fraction form
    3,909.04/5,864.56 = 2,881.28/x
  3. Step 3: Cross multiply
    3,909.04x = 5,864.56 × 2,881.28
  4. Step 4: Simplify right side
    3,909.04x = 16,897,439.44
  5. Step 5: Solve for x
    x = 16,897,439.44/3,909.04
  6. Step 6: Final answer
    x = 4,322.66

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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.