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Finding the Fourth Proportional to 2,851.68, 4,280.22 and 2,672.60

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Solution

The fourth proportional to 2,851.68, 4,280.22 and 2,672.60 is: 4,011.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,851.68 : 4,280.22 = 2,672.60 : x
  2. Step 2: Convert to fraction form
    2,851.68/4,280.22 = 2,672.60/x
  3. Step 3: Cross multiply
    2,851.68x = 4,280.22 × 2,672.60
  4. Step 4: Simplify right side
    2,851.68x = 11,439,315.97
  5. Step 5: Solve for x
    x = 11,439,315.97/2,851.68
  6. Step 6: Final answer
    x = 4,011.43

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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.