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Finding the Fourth Proportional to 1,224.46, 1,836.15 and 881.02

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Solution

The fourth proportional to 1,224.46, 1,836.15 and 881.02 is: 1,321.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,224.46 : 1,836.15 = 881.02 : x
  2. Step 2: Convert to fraction form
    1,224.46/1,836.15 = 881.02/x
  3. Step 3: Cross multiply
    1,224.46x = 1,836.15 × 881.02
  4. Step 4: Simplify right side
    1,224.46x = 1,617,684.87
  5. Step 5: Solve for x
    x = 1,617,684.87/1,224.46
  6. Step 6: Final answer
    x = 1,321.14

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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.