Home / 2,233.78-3,353.10-1,261.78

Finding the Fourth Proportional to 2,233.78, 3,353.10 and 1,261.78

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Solution

The fourth proportional to 2,233.78, 3,353.10 and 1,261.78 is: 1,894.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,233.78 : 3,353.10 = 1,261.78 : x
  2. Step 2: Convert to fraction form
    2,233.78/3,353.10 = 1,261.78/x
  3. Step 3: Cross multiply
    2,233.78x = 3,353.10 × 1,261.78
  4. Step 4: Simplify right side
    2,233.78x = 4,230,874.52
  5. Step 5: Solve for x
    x = 4,230,874.52/2,233.78
  6. Step 6: Final answer
    x = 1,894.04

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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.