Home / 2,731.56-3,767.52-2,140.92

Finding the Fourth Proportional to 2,731.56, 3,767.52 and 2,140.92

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Solution

The fourth proportional to 2,731.56, 3,767.52 and 2,140.92 is: 2,952.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,731.56 : 3,767.52 = 2,140.92 : x
  2. Step 2: Convert to fraction form
    2,731.56/3,767.52 = 2,140.92/x
  3. Step 3: Cross multiply
    2,731.56x = 3,767.52 × 2,140.92
  4. Step 4: Simplify right side
    2,731.56x = 8,065,958.92
  5. Step 5: Solve for x
    x = 8,065,958.92/2,731.56
  6. Step 6: Final answer
    x = 2,952.88

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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.