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Finding the Fourth Proportional to 1,838.76, 2,539.11 and 1,250.70

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Solution

The fourth proportional to 1,838.76, 2,539.11 and 1,250.70 is: 1,727.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,838.76 : 2,539.11 = 1,250.70 : x
  2. Step 2: Convert to fraction form
    1,838.76/2,539.11 = 1,250.70/x
  3. Step 3: Cross multiply
    1,838.76x = 2,539.11 × 1,250.70
  4. Step 4: Simplify right side
    1,838.76x = 3,175,664.88
  5. Step 5: Solve for x
    x = 3,175,664.88/1,838.76
  6. Step 6: Final answer
    x = 1,727.07

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.