Home / 2,175.12-3,262.80-615.26

Finding the Fourth Proportional to 2,175.12, 3,262.80 and 615.26

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Solution

The fourth proportional to 2,175.12, 3,262.80 and 615.26 is: 922.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,175.12 : 3,262.80 = 615.26 : x
  2. Step 2: Convert to fraction form
    2,175.12/3,262.80 = 615.26/x
  3. Step 3: Cross multiply
    2,175.12x = 3,262.80 × 615.26
  4. Step 4: Simplify right side
    2,175.12x = 2,007,470.33
  5. Step 5: Solve for x
    x = 2,007,470.33/2,175.12
  6. Step 6: Final answer
    x = 922.92

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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.