Home / 4,479.12-6,180.90-2,489.56

Finding the Fourth Proportional to 4,479.12, 6,180.90 and 2,489.56

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Solution

The fourth proportional to 4,479.12, 6,180.90 and 2,489.56 is: 3,435.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,479.12 : 6,180.90 = 2,489.56 : x
  2. Step 2: Convert to fraction form
    4,479.12/6,180.90 = 2,489.56/x
  3. Step 3: Cross multiply
    4,479.12x = 6,180.90 × 2,489.56
  4. Step 4: Simplify right side
    4,479.12x = 15,387,721.40
  5. Step 5: Solve for x
    x = 15,387,721.40/4,479.12
  6. Step 6: Final answer
    x = 3,435.43

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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.