Home / 2,175.10-3,263.20-615.11

Finding the Fourth Proportional to 2,175.10, 3,263.20 and 615.11

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Solution

The fourth proportional to 2,175.10, 3,263.20 and 615.11 is: 922.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,175.10 : 3,263.20 = 615.11 : x
  2. Step 2: Convert to fraction form
    2,175.10/3,263.20 = 615.11/x
  3. Step 3: Cross multiply
    2,175.10x = 3,263.20 × 615.11
  4. Step 4: Simplify right side
    2,175.10x = 2,007,209.10
  5. Step 5: Solve for x
    x = 2,007,209.10/2,175.10
  6. Step 6: Final answer
    x = 922.81

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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.