Home / 2,449.90-3,380.76-1,330.81

Finding the Fourth Proportional to 2,449.90, 3,380.76 and 1,330.81

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Solution

The fourth proportional to 2,449.90, 3,380.76 and 1,330.81 is: 1,836.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,449.90 : 3,380.76 = 1,330.81 : x
  2. Step 2: Convert to fraction form
    2,449.90/3,380.76 = 1,330.81/x
  3. Step 3: Cross multiply
    2,449.90x = 3,380.76 × 1,330.81
  4. Step 4: Simplify right side
    2,449.90x = 4,499,149.22
  5. Step 5: Solve for x
    x = 4,499,149.22/2,449.90
  6. Step 6: Final answer
    x = 1,836.46

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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.