Home / 1,426.88-2,127.33-1,390.97

Finding the Fourth Proportional to 1,426.88, 2,127.33 and 1,390.97

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Solution

The fourth proportional to 1,426.88, 2,127.33 and 1,390.97 is: 2,073.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,426.88 : 2,127.33 = 1,390.97 : x
  2. Step 2: Convert to fraction form
    1,426.88/2,127.33 = 1,390.97/x
  3. Step 3: Cross multiply
    1,426.88x = 2,127.33 × 1,390.97
  4. Step 4: Simplify right side
    1,426.88x = 2,959,057.53
  5. Step 5: Solve for x
    x = 2,959,057.53/1,426.88
  6. Step 6: Final answer
    x = 2,073.79

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These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.