Home / 2,476.49-3,715.10-1,321.61

Finding the Fourth Proportional to 2,476.49, 3,715.10 and 1,321.61

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Solution

The fourth proportional to 2,476.49, 3,715.10 and 1,321.61 is: 1,982.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,476.49 : 3,715.10 = 1,321.61 : x
  2. Step 2: Convert to fraction form
    2,476.49/3,715.10 = 1,321.61/x
  3. Step 3: Cross multiply
    2,476.49x = 3,715.10 × 1,321.61
  4. Step 4: Simplify right side
    2,476.49x = 4,909,906.70
  5. Step 5: Solve for x
    x = 4,909,906.70/2,476.49
  6. Step 6: Final answer
    x = 1,982.61

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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.