Home / 2,231.68-3,348.28-845.42

Finding the Fourth Proportional to 2,231.68, 3,348.28 and 845.42

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Solution

The fourth proportional to 2,231.68, 3,348.28 and 845.42 is: 1,268.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,231.68 : 3,348.28 = 845.42 : x
  2. Step 2: Convert to fraction form
    2,231.68/3,348.28 = 845.42/x
  3. Step 3: Cross multiply
    2,231.68x = 3,348.28 × 845.42
  4. Step 4: Simplify right side
    2,231.68x = 2,830,702.88
  5. Step 5: Solve for x
    x = 2,830,702.88/2,231.68
  6. Step 6: Final answer
    x = 1,268.42

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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.