Home / 3,714.19-5,125.78-2,142.38

Finding the Fourth Proportional to 3,714.19, 5,125.78 and 2,142.38

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Solution

The fourth proportional to 3,714.19, 5,125.78 and 2,142.38 is: 2,956.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,714.19 : 5,125.78 = 2,142.38 : x
  2. Step 2: Convert to fraction form
    3,714.19/5,125.78 = 2,142.38/x
  3. Step 3: Cross multiply
    3,714.19x = 5,125.78 × 2,142.38
  4. Step 4: Simplify right side
    3,714.19x = 10,981,384.05
  5. Step 5: Solve for x
    x = 10,981,384.05/3,714.19
  6. Step 6: Final answer
    x = 2,956.60

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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.