Home / 2,449.12-3,371.52-2,122.24

Finding the Fourth Proportional to 2,449.12, 3,371.52 and 2,122.24

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Solution

The fourth proportional to 2,449.12, 3,371.52 and 2,122.24 is: 2,921.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,449.12 : 3,371.52 = 2,122.24 : x
  2. Step 2: Convert to fraction form
    2,449.12/3,371.52 = 2,122.24/x
  3. Step 3: Cross multiply
    2,449.12x = 3,371.52 × 2,122.24
  4. Step 4: Simplify right side
    2,449.12x = 7,155,174.60
  5. Step 5: Solve for x
    x = 7,155,174.60/2,449.12
  6. Step 6: Final answer
    x = 2,921.53

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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.