Home / 1,974.47-2,724.92-1,277.87

Finding the Fourth Proportional to 1,974.47, 2,724.92 and 1,277.87

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Solution

The fourth proportional to 1,974.47, 2,724.92 and 1,277.87 is: 1,763.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,974.47 : 2,724.92 = 1,277.87 : x
  2. Step 2: Convert to fraction form
    1,974.47/2,724.92 = 1,277.87/x
  3. Step 3: Cross multiply
    1,974.47x = 2,724.92 × 1,277.87
  4. Step 4: Simplify right side
    1,974.47x = 3,482,093.52
  5. Step 5: Solve for x
    x = 3,482,093.52/1,974.47
  6. Step 6: Final answer
    x = 1,763.56

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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.