Home / 1,949.15-2,689.84-1,064.97

Finding the Fourth Proportional to 1,949.15, 2,689.84 and 1,064.97

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Solution

The fourth proportional to 1,949.15, 2,689.84 and 1,064.97 is: 1,469.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,949.15 : 2,689.84 = 1,064.97 : x
  2. Step 2: Convert to fraction form
    1,949.15/2,689.84 = 1,064.97/x
  3. Step 3: Cross multiply
    1,949.15x = 2,689.84 × 1,064.97
  4. Step 4: Simplify right side
    1,949.15x = 2,864,601.81
  5. Step 5: Solve for x
    x = 2,864,601.81/1,949.15
  6. Step 6: Final answer
    x = 1,469.67

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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.