Home / 5,429.04-8,138.28-2,508.98

Finding the Fourth Proportional to 5,429.04, 8,138.28 and 2,508.98

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Solution

The fourth proportional to 5,429.04, 8,138.28 and 2,508.98 is: 3,761.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,429.04 : 8,138.28 = 2,508.98 : x
  2. Step 2: Convert to fraction form
    5,429.04/8,138.28 = 2,508.98/x
  3. Step 3: Cross multiply
    5,429.04x = 8,138.28 × 2,508.98
  4. Step 4: Simplify right side
    5,429.04x = 20,418,781.75
  5. Step 5: Solve for x
    x = 20,418,781.75/5,429.04
  6. Step 6: Final answer
    x = 3,761.03

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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.