Home / 1,113.29-1,536.38-615.95

Finding the Fourth Proportional to 1,113.29, 1,536.38 and 615.95

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Solution

The fourth proportional to 1,113.29, 1,536.38 and 615.95 is: 850.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,113.29 : 1,536.38 = 615.95 : x
  2. Step 2: Convert to fraction form
    1,113.29/1,536.38 = 615.95/x
  3. Step 3: Cross multiply
    1,113.29x = 1,536.38 × 615.95
  4. Step 4: Simplify right side
    1,113.29x = 946,342.68
  5. Step 5: Solve for x
    x = 946,342.68/1,113.29
  6. Step 6: Final answer
    x = 850.04

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.