Home / 2,747.12-3,791.04-1,505.12

Finding the Fourth Proportional to 2,747.12, 3,791.04 and 1,505.12

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Solution

The fourth proportional to 2,747.12, 3,791.04 and 1,505.12 is: 2,077.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,747.12 : 3,791.04 = 1,505.12 : x
  2. Step 2: Convert to fraction form
    2,747.12/3,791.04 = 1,505.12/x
  3. Step 3: Cross multiply
    2,747.12x = 3,791.04 × 1,505.12
  4. Step 4: Simplify right side
    2,747.12x = 5,705,970.12
  5. Step 5: Solve for x
    x = 5,705,970.12/2,747.12
  6. Step 6: Final answer
    x = 2,077.07

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1.5x scale

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.