Home / 5,385.11-7,431.30-3,027.40

Finding the Fourth Proportional to 5,385.11, 7,431.30 and 3,027.40

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Solution

The fourth proportional to 5,385.11, 7,431.30 and 3,027.40 is: 4,177.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,385.11 : 7,431.30 = 3,027.40 : x
  2. Step 2: Convert to fraction form
    5,385.11/7,431.30 = 3,027.40/x
  3. Step 3: Cross multiply
    5,385.11x = 7,431.30 × 3,027.40
  4. Step 4: Simplify right side
    5,385.11x = 22,497,499.04
  5. Step 5: Solve for x
    x = 22,497,499.04/5,385.11
  6. Step 6: Final answer
    x = 4,177.73

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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.