Home / 5,385.98-8,078.51-2,265.86

Finding the Fourth Proportional to 5,385.98, 8,078.51 and 2,265.86

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Solution

The fourth proportional to 5,385.98, 8,078.51 and 2,265.86 is: 3,398.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,385.98 : 8,078.51 = 2,265.86 : x
  2. Step 2: Convert to fraction form
    5,385.98/8,078.51 = 2,265.86/x
  3. Step 3: Cross multiply
    5,385.98x = 8,078.51 × 2,265.86
  4. Step 4: Simplify right side
    5,385.98x = 18,304,732.28
  5. Step 5: Solve for x
    x = 18,304,732.28/5,385.98
  6. Step 6: Final answer
    x = 3,398.59

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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.