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Finding the Fourth Proportional to 1,822.38, 2,514.88 and 994.38

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Solution

The fourth proportional to 1,822.38, 2,514.88 and 994.38 is: 1,372.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,822.38 : 2,514.88 = 994.38 : x
  2. Step 2: Convert to fraction form
    1,822.38/2,514.88 = 994.38/x
  3. Step 3: Cross multiply
    1,822.38x = 2,514.88 × 994.38
  4. Step 4: Simplify right side
    1,822.38x = 2,500,733.80
  5. Step 5: Solve for x
    x = 2,500,733.80/1,822.38
  6. Step 6: Final answer
    x = 1,372.24

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.