Home / 1,761.96-2,639.70-1,031.34

Finding the Fourth Proportional to 1,761.96, 2,639.70 and 1,031.34

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Solution

The fourth proportional to 1,761.96, 2,639.70 and 1,031.34 is: 1,545.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,761.96 : 2,639.70 = 1,031.34 : x
  2. Step 2: Convert to fraction form
    1,761.96/2,639.70 = 1,031.34/x
  3. Step 3: Cross multiply
    1,761.96x = 2,639.70 × 1,031.34
  4. Step 4: Simplify right side
    1,761.96x = 2,722,428.20
  5. Step 5: Solve for x
    x = 2,722,428.20/1,761.96
  6. Step 6: Final answer
    x = 1,545.11

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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.