Home / 5,387.31-7,433.78-2,997

Finding the Fourth Proportional to 5,387.31, 7,433.78 and 2,997

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Solution

The fourth proportional to 5,387.31, 7,433.78 and 2,997 is: 4,135.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,387.31 : 7,433.78 = 2,997 : x
  2. Step 2: Convert to fraction form
    5,387.31/7,433.78 = 2,997/x
  3. Step 3: Cross multiply
    5,387.31x = 7,433.78 × 2,997
  4. Step 4: Simplify right side
    5,387.31x = 22,279,023.68
  5. Step 5: Solve for x
    x = 22,279,023.68/5,387.31
  6. Step 6: Final answer
    x = 4,135.46

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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.