Home / 2,847.12-4,250.80-2,672.16

Finding the Fourth Proportional to 2,847.12, 4,250.80 and 2,672.16

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Solution

The fourth proportional to 2,847.12, 4,250.80 and 2,672.16 is: 3,989.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,847.12 : 4,250.80 = 2,672.16 : x
  2. Step 2: Convert to fraction form
    2,847.12/4,250.80 = 2,672.16/x
  3. Step 3: Cross multiply
    2,847.12x = 4,250.80 × 2,672.16
  4. Step 4: Simplify right side
    2,847.12x = 11,358,817.73
  5. Step 5: Solve for x
    x = 11,358,817.73/2,847.12
  6. Step 6: Final answer
    x = 3,989.58

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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.