Home / 2,461.46-3,691.10-921.38

Finding the Fourth Proportional to 2,461.46, 3,691.10 and 921.38

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Solution

The fourth proportional to 2,461.46, 3,691.10 and 921.38 is: 1,381.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,461.46 : 3,691.10 = 921.38 : x
  2. Step 2: Convert to fraction form
    2,461.46/3,691.10 = 921.38/x
  3. Step 3: Cross multiply
    2,461.46x = 3,691.10 × 921.38
  4. Step 4: Simplify right side
    2,461.46x = 3,400,889.57
  5. Step 5: Solve for x
    x = 3,400,889.57/2,461.46
  6. Step 6: Final answer
    x = 1,381.66

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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.