Home / 3,135.11-4,704.48-1,187.46

Finding the Fourth Proportional to 3,135.11, 4,704.48 and 1,187.46

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Solution

The fourth proportional to 3,135.11, 4,704.48 and 1,187.46 is: 1,781.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,135.11 : 4,704.48 = 1,187.46 : x
  2. Step 2: Convert to fraction form
    3,135.11/4,704.48 = 1,187.46/x
  3. Step 3: Cross multiply
    3,135.11x = 4,704.48 × 1,187.46
  4. Step 4: Simplify right side
    3,135.11x = 5,586,381.82
  5. Step 5: Solve for x
    x = 5,586,381.82/3,135.11
  6. Step 6: Final answer
    x = 1,781.88

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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.