Home / 2,825.26-3,898.68-1,660.11

Finding the Fourth Proportional to 2,825.26, 3,898.68 and 1,660.11

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Solution

The fourth proportional to 2,825.26, 3,898.68 and 1,660.11 is: 2,290.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,825.26 : 3,898.68 = 1,660.11 : x
  2. Step 2: Convert to fraction form
    2,825.26/3,898.68 = 1,660.11/x
  3. Step 3: Cross multiply
    2,825.26x = 3,898.68 × 1,660.11
  4. Step 4: Simplify right side
    2,825.26x = 6,472,237.65
  5. Step 5: Solve for x
    x = 6,472,237.65/2,825.26
  6. Step 6: Final answer
    x = 2,290.85

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1.5x scale

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.