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Finding the Fourth Proportional to 1,342.28, 2,014.03 and 725.33

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Solution

The fourth proportional to 1,342.28, 2,014.03 and 725.33 is: 1,088.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,342.28 : 2,014.03 = 725.33 : x
  2. Step 2: Convert to fraction form
    1,342.28/2,014.03 = 725.33/x
  3. Step 3: Cross multiply
    1,342.28x = 2,014.03 × 725.33
  4. Step 4: Simplify right side
    1,342.28x = 1,460,836.38
  5. Step 5: Solve for x
    x = 1,460,836.38/1,342.28
  6. Step 6: Final answer
    x = 1,088.32

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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.