Home / 3,850.20-5,774.40-1,251.72

Finding the Fourth Proportional to 3,850.20, 5,774.40 and 1,251.72

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Solution

The fourth proportional to 3,850.20, 5,774.40 and 1,251.72 is: 1,877.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,850.20 : 5,774.40 = 1,251.72 : x
  2. Step 2: Convert to fraction form
    3,850.20/5,774.40 = 1,251.72/x
  3. Step 3: Cross multiply
    3,850.20x = 5,774.40 × 1,251.72
  4. Step 4: Simplify right side
    3,850.20x = 7,227,931.97
  5. Step 5: Solve for x
    x = 7,227,931.97/3,850.20
  6. Step 6: Final answer
    x = 1,877.29

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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.