Home / 4,478.83-6,180.81-2,489.57

Finding the Fourth Proportional to 4,478.83, 6,180.81 and 2,489.57

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Solution

The fourth proportional to 4,478.83, 6,180.81 and 2,489.57 is: 3,435.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,478.83 : 6,180.81 = 2,489.57 : x
  2. Step 2: Convert to fraction form
    4,478.83/6,180.81 = 2,489.57/x
  3. Step 3: Cross multiply
    4,478.83x = 6,180.81 × 2,489.57
  4. Step 4: Simplify right side
    4,478.83x = 15,387,542.09
  5. Step 5: Solve for x
    x = 15,387,542.09/4,478.83
  6. Step 6: Final answer
    x = 3,435.62

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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.