Home / 1,113.21-1,536.44-935.96

Finding the Fourth Proportional to 1,113.21, 1,536.44 and 935.96

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Solution

The fourth proportional to 1,113.21, 1,536.44 and 935.96 is: 1,291.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,113.21 : 1,536.44 = 935.96 : x
  2. Step 2: Convert to fraction form
    1,113.21/1,536.44 = 935.96/x
  3. Step 3: Cross multiply
    1,113.21x = 1,536.44 × 935.96
  4. Step 4: Simplify right side
    1,113.21x = 1,438,034.02
  5. Step 5: Solve for x
    x = 1,438,034.02/1,113.21
  6. Step 6: Final answer
    x = 1,291.79

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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.