Home / 1,949.39-2,690.13-1,065.18

Finding the Fourth Proportional to 1,949.39, 2,690.13 and 1,065.18

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Solution

The fourth proportional to 1,949.39, 2,690.13 and 1,065.18 is: 1,469.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,949.39 : 2,690.13 = 1,065.18 : x
  2. Step 2: Convert to fraction form
    1,949.39/2,690.13 = 1,065.18/x
  3. Step 3: Cross multiply
    1,949.39x = 2,690.13 × 1,065.18
  4. Step 4: Simplify right side
    1,949.39x = 2,865,472.67
  5. Step 5: Solve for x
    x = 2,865,472.67/1,949.39
  6. Step 6: Final answer
    x = 1,469.94

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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.