Home / 1,342.28-2,012.97-1,243.46

Finding the Fourth Proportional to 1,342.28, 2,012.97 and 1,243.46

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Solution

The fourth proportional to 1,342.28, 2,012.97 and 1,243.46 is: 1,864.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,342.28 : 2,012.97 = 1,243.46 : x
  2. Step 2: Convert to fraction form
    1,342.28/2,012.97 = 1,243.46/x
  3. Step 3: Cross multiply
    1,342.28x = 2,012.97 × 1,243.46
  4. Step 4: Simplify right side
    1,342.28x = 2,503,047.68
  5. Step 5: Solve for x
    x = 2,503,047.68/1,342.28
  6. Step 6: Final answer
    x = 1,864.77

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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.