Home / 4,478.60-6,180.54-2,489.18

Finding the Fourth Proportional to 4,478.60, 6,180.54 and 2,489.18

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Solution

The fourth proportional to 4,478.60, 6,180.54 and 2,489.18 is: 3,435.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,478.60 : 6,180.54 = 2,489.18 : x
  2. Step 2: Convert to fraction form
    4,478.60/6,180.54 = 2,489.18/x
  3. Step 3: Cross multiply
    4,478.60x = 6,180.54 × 2,489.18
  4. Step 4: Simplify right side
    4,478.60x = 15,384,476.56
  5. Step 5: Solve for x
    x = 15,384,476.56/4,478.60
  6. Step 6: Final answer
    x = 3,435.11

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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.