Home / 1,949.23-2,689.81-1,065.02

Finding the Fourth Proportional to 1,949.23, 2,689.81 and 1,065.02

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Solution

The fourth proportional to 1,949.23, 2,689.81 and 1,065.02 is: 1,469.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,949.23 : 2,689.81 = 1,065.02 : x
  2. Step 2: Convert to fraction form
    1,949.23/2,689.81 = 1,065.02/x
  3. Step 3: Cross multiply
    1,949.23x = 2,689.81 × 1,065.02
  4. Step 4: Simplify right side
    1,949.23x = 2,864,685.33
  5. Step 5: Solve for x
    x = 2,864,685.33/1,949.23
  6. Step 6: Final answer
    x = 1,469.65

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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.