Home / 2,757.76-4,135.56-1,115.08

Finding the Fourth Proportional to 2,757.76, 4,135.56 and 1,115.08

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Solution

The fourth proportional to 2,757.76, 4,135.56 and 1,115.08 is: 1,672.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,757.76 : 4,135.56 = 1,115.08 : x
  2. Step 2: Convert to fraction form
    2,757.76/4,135.56 = 1,115.08/x
  3. Step 3: Cross multiply
    2,757.76x = 4,135.56 × 1,115.08
  4. Step 4: Simplify right side
    2,757.76x = 4,611,480.24
  5. Step 5: Solve for x
    x = 4,611,480.24/2,757.76
  6. Step 6: Final answer
    x = 1,672.18

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1.5x scale

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.