Home / 2,744.38-3,780.56-2,080.58

Finding the Fourth Proportional to 2,744.38, 3,780.56 and 2,080.58

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Solution

The fourth proportional to 2,744.38, 3,780.56 and 2,080.58 is: 2,866.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,744.38 : 3,780.56 = 2,080.58 : x
  2. Step 2: Convert to fraction form
    2,744.38/3,780.56 = 2,080.58/x
  3. Step 3: Cross multiply
    2,744.38x = 3,780.56 × 2,080.58
  4. Step 4: Simplify right side
    2,744.38x = 7,865,747.12
  5. Step 5: Solve for x
    x = 7,865,747.12/2,744.38
  6. Step 6: Final answer
    x = 2,866.13

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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.