Home / 1,515.32-2,272.89-1,474.28

Finding the Fourth Proportional to 1,515.32, 2,272.89 and 1,474.28

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Solution

The fourth proportional to 1,515.32, 2,272.89 and 1,474.28 is: 2,211.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,515.32 : 2,272.89 = 1,474.28 : x
  2. Step 2: Convert to fraction form
    1,515.32/2,272.89 = 1,474.28/x
  3. Step 3: Cross multiply
    1,515.32x = 2,272.89 × 1,474.28
  4. Step 4: Simplify right side
    1,515.32x = 3,350,876.27
  5. Step 5: Solve for x
    x = 3,350,876.27/1,515.32
  6. Step 6: Final answer
    x = 2,211.33

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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.