Home / 1,949.11-2,689.78-1,064.93

Finding the Fourth Proportional to 1,949.11, 2,689.78 and 1,064.93

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Solution

The fourth proportional to 1,949.11, 2,689.78 and 1,064.93 is: 1,469.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,949.11 : 2,689.78 = 1,064.93 : x
  2. Step 2: Convert to fraction form
    1,949.11/2,689.78 = 1,064.93/x
  3. Step 3: Cross multiply
    1,949.11x = 2,689.78 × 1,064.93
  4. Step 4: Simplify right side
    1,949.11x = 2,864,431.48
  5. Step 5: Solve for x
    x = 2,864,431.48/1,949.11
  6. Step 6: Final answer
    x = 1,469.61

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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.