Home / 1,113.26-1,536.30-615.89

Finding the Fourth Proportional to 1,113.26, 1,536.30 and 615.89

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Solution

The fourth proportional to 1,113.26, 1,536.30 and 615.89 is: 849.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,113.26 : 1,536.30 = 615.89 : x
  2. Step 2: Convert to fraction form
    1,113.26/1,536.30 = 615.89/x
  3. Step 3: Cross multiply
    1,113.26x = 1,536.30 × 615.89
  4. Step 4: Simplify right side
    1,113.26x = 946,191.21
  5. Step 5: Solve for x
    x = 946,191.21/1,113.26
  6. Step 6: Final answer
    x = 849.93

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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.