Home / 1,949.46-2,690.17-1,065.21

Finding the Fourth Proportional to 1,949.46, 2,690.17 and 1,065.21

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Solution

The fourth proportional to 1,949.46, 2,690.17 and 1,065.21 is: 1,469.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,949.46 : 2,690.17 = 1,065.21 : x
  2. Step 2: Convert to fraction form
    1,949.46/2,690.17 = 1,065.21/x
  3. Step 3: Cross multiply
    1,949.46x = 2,690.17 × 1,065.21
  4. Step 4: Simplify right side
    1,949.46x = 2,865,595.99
  5. Step 5: Solve for x
    x = 2,865,595.99/1,949.46
  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.