Home / 1,989.14-2,744.84-1,092.74

Finding the Fourth Proportional to 1,989.14, 2,744.84 and 1,092.74

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Solution

The fourth proportional to 1,989.14, 2,744.84 and 1,092.74 is: 1,507.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,989.14 : 2,744.84 = 1,092.74 : x
  2. Step 2: Convert to fraction form
    1,989.14/2,744.84 = 1,092.74/x
  3. Step 3: Cross multiply
    1,989.14x = 2,744.84 × 1,092.74
  4. Step 4: Simplify right side
    1,989.14x = 2,999,385.47
  5. Step 5: Solve for x
    x = 2,999,385.47/1,989.14
  6. Step 6: Final answer
    x = 1,507.88

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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.