Home / 2,728.46-4,098.36-2,655.56

Finding the Fourth Proportional to 2,728.46, 4,098.36 and 2,655.56

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Solution

The fourth proportional to 2,728.46, 4,098.36 and 2,655.56 is: 3,988.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,728.46 : 4,098.36 = 2,655.56 : x
  2. Step 2: Convert to fraction form
    2,728.46/4,098.36 = 2,655.56/x
  3. Step 3: Cross multiply
    2,728.46x = 4,098.36 × 2,655.56
  4. Step 4: Simplify right side
    2,728.46x = 10,883,440.88
  5. Step 5: Solve for x
    x = 10,883,440.88/2,728.46
  6. Step 6: Final answer
    x = 3,988.86

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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.