Home / 2,756.13-4,135.40-1,115.88

Finding the Fourth Proportional to 2,756.13, 4,135.40 and 1,115.88

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Solution

The fourth proportional to 2,756.13, 4,135.40 and 1,115.88 is: 1,674.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,756.13 : 4,135.40 = 1,115.88 : x
  2. Step 2: Convert to fraction form
    2,756.13/4,135.40 = 1,115.88/x
  3. Step 3: Cross multiply
    2,756.13x = 4,135.40 × 1,115.88
  4. Step 4: Simplify right side
    2,756.13x = 4,614,604.57
  5. Step 5: Solve for x
    x = 4,614,604.57/2,756.13
  6. Step 6: Final answer
    x = 1,674.31

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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.