Home / 1,351.28-2,026.96-1,092.80

Finding the Fourth Proportional to 1,351.28, 2,026.96 and 1,092.80

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Solution

The fourth proportional to 1,351.28, 2,026.96 and 1,092.80 is: 1,639.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,351.28 : 2,026.96 = 1,092.80 : x
  2. Step 2: Convert to fraction form
    1,351.28/2,026.96 = 1,092.80/x
  3. Step 3: Cross multiply
    1,351.28x = 2,026.96 × 1,092.80
  4. Step 4: Simplify right side
    1,351.28x = 2,215,061.89
  5. Step 5: Solve for x
    x = 2,215,061.89/1,351.28
  6. Step 6: Final answer
    x = 1,639.23

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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.