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Finding the Fourth Proportional to 1,273.67, 1,901.68 and 1,260.46

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Solution

The fourth proportional to 1,273.67, 1,901.68 and 1,260.46 is: 1,881.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,273.67 : 1,901.68 = 1,260.46 : x
  2. Step 2: Convert to fraction form
    1,273.67/1,901.68 = 1,260.46/x
  3. Step 3: Cross multiply
    1,273.67x = 1,901.68 × 1,260.46
  4. Step 4: Simplify right side
    1,273.67x = 2,396,990.80
  5. Step 5: Solve for x
    x = 2,396,990.80/1,273.67
  6. Step 6: Final answer
    x = 1,881.95

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.