Home / 3,974.20-5,961.35-1,200.89

Finding the Fourth Proportional to 3,974.20, 5,961.35 and 1,200.89

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Solution

The fourth proportional to 3,974.20, 5,961.35 and 1,200.89 is: 1,801.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,974.20 : 5,961.35 = 1,200.89 : x
  2. Step 2: Convert to fraction form
    3,974.20/5,961.35 = 1,200.89/x
  3. Step 3: Cross multiply
    3,974.20x = 5,961.35 × 1,200.89
  4. Step 4: Simplify right side
    3,974.20x = 7,158,943.51
  5. Step 5: Solve for x
    x = 7,158,943.51/3,974.20
  6. Step 6: Final answer
    x = 1,801.36

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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.