Home / 1,949.35-2,690.09-1,065.14

Finding the Fourth Proportional to 1,949.35, 2,690.09 and 1,065.14

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Solution

The fourth proportional to 1,949.35, 2,690.09 and 1,065.14 is: 1,469.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,949.35 : 2,690.09 = 1,065.14 : x
  2. Step 2: Convert to fraction form
    1,949.35/2,690.09 = 1,065.14/x
  3. Step 3: Cross multiply
    1,949.35x = 2,690.09 × 1,065.14
  4. Step 4: Simplify right side
    1,949.35x = 2,865,303.69
  5. Step 5: Solve for x
    x = 2,865,303.69/1,949.35
  6. Step 6: Final answer
    x = 1,469.88

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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.