Home / 3,638.43-5,456.70-1,040.76

Finding the Fourth Proportional to 3,638.43, 5,456.70 and 1,040.76

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Solution

The fourth proportional to 3,638.43, 5,456.70 and 1,040.76 is: 1,560.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,638.43 : 5,456.70 = 1,040.76 : x
  2. Step 2: Convert to fraction form
    3,638.43/5,456.70 = 1,040.76/x
  3. Step 3: Cross multiply
    3,638.43x = 5,456.70 × 1,040.76
  4. Step 4: Simplify right side
    3,638.43x = 5,679,115.09
  5. Step 5: Solve for x
    x = 5,679,115.09/3,638.43
  6. Step 6: Final answer
    x = 1,560.87

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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.