Home / 1,224.16-1,836.80-531.04

Finding the Fourth Proportional to 1,224.16, 1,836.80 and 531.04

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Solution

The fourth proportional to 1,224.16, 1,836.80 and 531.04 is: 796.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,224.16 : 1,836.80 = 531.04 : x
  2. Step 2: Convert to fraction form
    1,224.16/1,836.80 = 531.04/x
  3. Step 3: Cross multiply
    1,224.16x = 1,836.80 × 531.04
  4. Step 4: Simplify right side
    1,224.16x = 975,414.27
  5. Step 5: Solve for x
    x = 975,414.27/1,224.16
  6. Step 6: Final answer
    x = 796.80

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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.