Home / 3,896.68-5,377.40-2,195.04

Finding the Fourth Proportional to 3,896.68, 5,377.40 and 2,195.04

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Solution

The fourth proportional to 3,896.68, 5,377.40 and 2,195.04 is: 3,029.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,896.68 : 5,377.40 = 2,195.04 : x
  2. Step 2: Convert to fraction form
    3,896.68/5,377.40 = 2,195.04/x
  3. Step 3: Cross multiply
    3,896.68x = 5,377.40 × 2,195.04
  4. Step 4: Simplify right side
    3,896.68x = 11,803,608.10
  5. Step 5: Solve for x
    x = 11,803,608.10/3,896.68
  6. Step 6: Final answer
    x = 3,029.14

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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.