Home / 1,343.55-2,013.17-1,127.55

Finding the Fourth Proportional to 1,343.55, 2,013.17 and 1,127.55

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Solution

The fourth proportional to 1,343.55, 2,013.17 and 1,127.55 is: 1,689.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,343.55 : 2,013.17 = 1,127.55 : x
  2. Step 2: Convert to fraction form
    1,343.55/2,013.17 = 1,127.55/x
  3. Step 3: Cross multiply
    1,343.55x = 2,013.17 × 1,127.55
  4. Step 4: Simplify right side
    1,343.55x = 2,269,944.20
  5. Step 5: Solve for x
    x = 2,269,944.20/1,343.55
  6. Step 6: Final answer
    x = 1,689.51

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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.