Home / 2,245.10-3,367.20-857.48

Finding the Fourth Proportional to 2,245.10, 3,367.20 and 857.48

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Solution

The fourth proportional to 2,245.10, 3,367.20 and 857.48 is: 1,286.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,245.10 : 3,367.20 = 857.48 : x
  2. Step 2: Convert to fraction form
    2,245.10/3,367.20 = 857.48/x
  3. Step 3: Cross multiply
    2,245.10x = 3,367.20 × 857.48
  4. Step 4: Simplify right side
    2,245.10x = 2,887,306.66
  5. Step 5: Solve for x
    x = 2,887,306.66/2,245.10
  6. Step 6: Final answer
    x = 1,286.05

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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.