Home / 1,512.72-2,257.29-1,349.28

Finding the Fourth Proportional to 1,512.72, 2,257.29 and 1,349.28

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Solution

The fourth proportional to 1,512.72, 2,257.29 and 1,349.28 is: 2,013.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,512.72 : 2,257.29 = 1,349.28 : x
  2. Step 2: Convert to fraction form
    1,512.72/2,257.29 = 1,349.28/x
  3. Step 3: Cross multiply
    1,512.72x = 2,257.29 × 1,349.28
  4. Step 4: Simplify right side
    1,512.72x = 3,045,716.25
  5. Step 5: Solve for x
    x = 3,045,716.25/1,512.72
  6. Step 6: Final answer
    x = 2,013.40

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.