Home / 2,449.05-3,378.80-1,610.21

Finding the Fourth Proportional to 2,449.05, 3,378.80 and 1,610.21

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Solution

The fourth proportional to 2,449.05, 3,378.80 and 1,610.21 is: 2,221.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,449.05 : 3,378.80 = 1,610.21 : x
  2. Step 2: Convert to fraction form
    2,449.05/3,378.80 = 1,610.21/x
  3. Step 3: Cross multiply
    2,449.05x = 3,378.80 × 1,610.21
  4. Step 4: Simplify right side
    2,449.05x = 5,440,552.60
  5. Step 5: Solve for x
    x = 5,440,552.60/2,449.05
  6. Step 6: Final answer
    x = 2,221.50

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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.