Home / 2,166.54-3,251.84-1,127.28

Finding the Fourth Proportional to 2,166.54, 3,251.84 and 1,127.28

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Solution

The fourth proportional to 2,166.54, 3,251.84 and 1,127.28 is: 1,691.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,166.54 : 3,251.84 = 1,127.28 : x
  2. Step 2: Convert to fraction form
    2,166.54/3,251.84 = 1,127.28/x
  3. Step 3: Cross multiply
    2,166.54x = 3,251.84 × 1,127.28
  4. Step 4: Simplify right side
    2,166.54x = 3,665,737.01
  5. Step 5: Solve for x
    x = 3,665,737.01/2,166.54
  6. Step 6: Final answer
    x = 1,691.97

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1.5x scale

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.