Home / 5,385.14-7,431.50-3,027.28

Finding the Fourth Proportional to 5,385.14, 7,431.50 and 3,027.28

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Solution

The fourth proportional to 5,385.14, 7,431.50 and 3,027.28 is: 4,177.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,385.14 : 7,431.50 = 3,027.28 : x
  2. Step 2: Convert to fraction form
    5,385.14/7,431.50 = 3,027.28/x
  3. Step 3: Cross multiply
    5,385.14x = 7,431.50 × 3,027.28
  4. Step 4: Simplify right side
    5,385.14x = 22,497,231.32
  5. Step 5: Solve for x
    x = 22,497,231.32/5,385.14
  6. Step 6: Final answer
    x = 4,177.65

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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.