Home / 1,542.11-2,127.57-1,069.88

Finding the Fourth Proportional to 1,542.11, 2,127.57 and 1,069.88

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Solution

The fourth proportional to 1,542.11, 2,127.57 and 1,069.88 is: 1,476.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,542.11 : 2,127.57 = 1,069.88 : x
  2. Step 2: Convert to fraction form
    1,542.11/2,127.57 = 1,069.88/x
  3. Step 3: Cross multiply
    1,542.11x = 2,127.57 × 1,069.88
  4. Step 4: Simplify right side
    1,542.11x = 2,276,229.94
  5. Step 5: Solve for x
    x = 2,276,229.94/1,542.11
  6. Step 6: Final answer
    x = 1,476.05

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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.