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Finding the Fourth Proportional to 2,750.80, 4,126.20 and 2,567.20

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Solution

The fourth proportional to 2,750.80, 4,126.20 and 2,567.20 is: 3,850.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,750.80 : 4,126.20 = 2,567.20 : x
  2. Step 2: Convert to fraction form
    2,750.80/4,126.20 = 2,567.20/x
  3. Step 3: Cross multiply
    2,750.80x = 4,126.20 × 2,567.20
  4. Step 4: Simplify right side
    2,750.80x = 10,592,780.64
  5. Step 5: Solve for x
    x = 10,592,780.64/2,750.80
  6. Step 6: Final answer
    x = 3,850.80

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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.