Home / 2,175.18-3,262.82-615.12

Finding the Fourth Proportional to 2,175.18, 3,262.82 and 615.12

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Solution

The fourth proportional to 2,175.18, 3,262.82 and 615.12 is: 922.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,175.18 : 3,262.82 = 615.12 : x
  2. Step 2: Convert to fraction form
    2,175.18/3,262.82 = 615.12/x
  3. Step 3: Cross multiply
    2,175.18x = 3,262.82 × 615.12
  4. Step 4: Simplify right side
    2,175.18x = 2,007,025.84
  5. Step 5: Solve for x
    x = 2,007,025.84/2,175.18
  6. Step 6: Final answer
    x = 922.69

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1.5x scale

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.