Home / 2,760.96-4,125.66-2,099.20

Finding the Fourth Proportional to 2,760.96, 4,125.66 and 2,099.20

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Solution

The fourth proportional to 2,760.96, 4,125.66 and 2,099.20 is: 3,136.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,760.96 : 4,125.66 = 2,099.20 : x
  2. Step 2: Convert to fraction form
    2,760.96/4,125.66 = 2,099.20/x
  3. Step 3: Cross multiply
    2,760.96x = 4,125.66 × 2,099.20
  4. Step 4: Simplify right side
    2,760.96x = 8,660,585.47
  5. Step 5: Solve for x
    x = 8,660,585.47/2,760.96
  6. Step 6: Final answer
    x = 3,136.80

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.