Home / 5,385.47-7,432.31-3,027.77

Finding the Fourth Proportional to 5,385.47, 7,432.31 and 3,027.77

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Solution

The fourth proportional to 5,385.47, 7,432.31 and 3,027.77 is: 4,178.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,385.47 : 7,432.31 = 3,027.77 : x
  2. Step 2: Convert to fraction form
    5,385.47/7,432.31 = 3,027.77/x
  3. Step 3: Cross multiply
    5,385.47x = 7,432.31 × 3,027.77
  4. Step 4: Simplify right side
    5,385.47x = 22,503,272.95
  5. Step 5: Solve for x
    x = 22,503,272.95/5,385.47
  6. Step 6: Final answer
    x = 4,178.52

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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.