Home / 1,949.06-2,689.68-1,064.88

Finding the Fourth Proportional to 1,949.06, 2,689.68 and 1,064.88

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Solution

The fourth proportional to 1,949.06, 2,689.68 and 1,064.88 is: 1,469.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,949.06 : 2,689.68 = 1,064.88 : x
  2. Step 2: Convert to fraction form
    1,949.06/2,689.68 = 1,064.88/x
  3. Step 3: Cross multiply
    1,949.06x = 2,689.68 × 1,064.88
  4. Step 4: Simplify right side
    1,949.06x = 2,864,186.44
  5. Step 5: Solve for x
    x = 2,864,186.44/1,949.06
  6. Step 6: Final answer
    x = 1,469.52

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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.