Home / 1,542.16-2,126.28-1,127.44

Finding the Fourth Proportional to 1,542.16, 2,126.28 and 1,127.44

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Solution

The fourth proportional to 1,542.16, 2,126.28 and 1,127.44 is: 1,554.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,542.16 : 2,126.28 = 1,127.44 : x
  2. Step 2: Convert to fraction form
    1,542.16/2,126.28 = 1,127.44/x
  3. Step 3: Cross multiply
    1,542.16x = 2,126.28 × 1,127.44
  4. Step 4: Simplify right side
    1,542.16x = 2,397,253.12
  5. Step 5: Solve for x
    x = 2,397,253.12/1,542.16
  6. Step 6: Final answer
    x = 1,554.48

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1.5x scale

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.