Home / 2,122.65-3,185.92-1,083.40

Finding the Fourth Proportional to 2,122.65, 3,185.92 and 1,083.40

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Solution

The fourth proportional to 2,122.65, 3,185.92 and 1,083.40 is: 1,626.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,122.65 : 3,185.92 = 1,083.40 : x
  2. Step 2: Convert to fraction form
    2,122.65/3,185.92 = 1,083.40/x
  3. Step 3: Cross multiply
    2,122.65x = 3,185.92 × 1,083.40
  4. Step 4: Simplify right side
    2,122.65x = 3,451,604.38
  5. Step 5: Solve for x
    x = 3,451,604.38/2,122.65
  6. Step 6: Final answer
    x = 1,626.08

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.