Home / 1,966.99-2,714.38-1,082.78

Finding the Fourth Proportional to 1,966.99, 2,714.38 and 1,082.78

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Solution

The fourth proportional to 1,966.99, 2,714.38 and 1,082.78 is: 1,494.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,966.99 : 2,714.38 = 1,082.78 : x
  2. Step 2: Convert to fraction form
    1,966.99/2,714.38 = 1,082.78/x
  3. Step 3: Cross multiply
    1,966.99x = 2,714.38 × 1,082.78
  4. Step 4: Simplify right side
    1,966.99x = 2,939,076.38
  5. Step 5: Solve for x
    x = 2,939,076.38/1,966.99
  6. Step 6: Final answer
    x = 1,494.20

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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.