Home / 3,247.60-4,872.12-1,515.28

Finding the Fourth Proportional to 3,247.60, 4,872.12 and 1,515.28

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Solution

The fourth proportional to 3,247.60, 4,872.12 and 1,515.28 is: 2,273.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,247.60 : 4,872.12 = 1,515.28 : x
  2. Step 2: Convert to fraction form
    3,247.60/4,872.12 = 1,515.28/x
  3. Step 3: Cross multiply
    3,247.60x = 4,872.12 × 1,515.28
  4. Step 4: Simplify right side
    3,247.60x = 7,382,637.77
  5. Step 5: Solve for x
    x = 7,382,637.77/3,247.60
  6. Step 6: Final answer
    x = 2,273.26

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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.