Home / 4,478.63-6,180.21-2,489.11

Finding the Fourth Proportional to 4,478.63, 6,180.21 and 2,489.11

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Solution

The fourth proportional to 4,478.63, 6,180.21 and 2,489.11 is: 3,434.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,478.63 : 6,180.21 = 2,489.11 : x
  2. Step 2: Convert to fraction form
    4,478.63/6,180.21 = 2,489.11/x
  3. Step 3: Cross multiply
    4,478.63x = 6,180.21 × 2,489.11
  4. Step 4: Simplify right side
    4,478.63x = 15,383,207.06
  5. Step 5: Solve for x
    x = 15,383,207.06/4,478.63
  6. Step 6: Final answer
    x = 3,434.81

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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.