Home / 1,353.67-2,031.13-1,331.83

Finding the Fourth Proportional to 1,353.67, 2,031.13 and 1,331.83

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Solution

The fourth proportional to 1,353.67, 2,031.13 and 1,331.83 is: 1,998.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,353.67 : 2,031.13 = 1,331.83 : x
  2. Step 2: Convert to fraction form
    1,353.67/2,031.13 = 1,331.83/x
  3. Step 3: Cross multiply
    1,353.67x = 2,031.13 × 1,331.83
  4. Step 4: Simplify right side
    1,353.67x = 2,705,119.87
  5. Step 5: Solve for x
    x = 2,705,119.87/1,353.67
  6. Step 6: Final answer
    x = 1,998.36

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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.