Home / 2,001.27-2,760.78-1,338.30

Finding the Fourth Proportional to 2,001.27, 2,760.78 and 1,338.30

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Solution

The fourth proportional to 2,001.27, 2,760.78 and 1,338.30 is: 1,846.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,001.27 : 2,760.78 = 1,338.30 : x
  2. Step 2: Convert to fraction form
    2,001.27/2,760.78 = 1,338.30/x
  3. Step 3: Cross multiply
    2,001.27x = 2,760.78 × 1,338.30
  4. Step 4: Simplify right side
    2,001.27x = 3,694,751.87
  5. Step 5: Solve for x
    x = 3,694,751.87/2,001.27
  6. Step 6: Final answer
    x = 1,846.20

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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.