Home / 6,871.28-10,304-2,972.90

Finding the Fourth Proportional to 6,871.28, 10,304 and 2,972.90

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Solution

The fourth proportional to 6,871.28, 10,304 and 2,972.90 is: 4,458.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,871.28 : 10,304 = 2,972.90 : x
  2. Step 2: Convert to fraction form
    6,871.28/10,304 = 2,972.90/x
  3. Step 3: Cross multiply
    6,871.28x = 10,304 × 2,972.90
  4. Step 4: Simplify right side
    6,871.28x = 30,632,761.60
  5. Step 5: Solve for x
    x = 30,632,761.60/6,871.28
  6. Step 6: Final answer
    x = 4,458.09

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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.