Home / 1,353.61-2,031.03-1,331.77

Finding the Fourth Proportional to 1,353.61, 2,031.03 and 1,331.77

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Solution

The fourth proportional to 1,353.61, 2,031.03 and 1,331.77 is: 1,998.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,353.61 : 2,031.03 = 1,331.77 : x
  2. Step 2: Convert to fraction form
    1,353.61/2,031.03 = 1,331.77/x
  3. Step 3: Cross multiply
    1,353.61x = 2,031.03 × 1,331.77
  4. Step 4: Simplify right side
    1,353.61x = 2,704,864.82
  5. Step 5: Solve for x
    x = 2,704,864.82/1,353.61
  6. Step 6: Final answer
    x = 1,998.26

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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.