Home / 3,335.56-5,003.89-1,387.90

Finding the Fourth Proportional to 3,335.56, 5,003.89 and 1,387.90

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Solution

The fourth proportional to 3,335.56, 5,003.89 and 1,387.90 is: 2,082.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,335.56 : 5,003.89 = 1,387.90 : x
  2. Step 2: Convert to fraction form
    3,335.56/5,003.89 = 1,387.90/x
  3. Step 3: Cross multiply
    3,335.56x = 5,003.89 × 1,387.90
  4. Step 4: Simplify right side
    3,335.56x = 6,944,898.93
  5. Step 5: Solve for x
    x = 6,944,898.93/3,335.56
  6. Step 6: Final answer
    x = 2,082.08

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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.