Home / 4,478.76-6,180.57-2,489.40

Finding the Fourth Proportional to 4,478.76, 6,180.57 and 2,489.40

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Solution

The fourth proportional to 4,478.76, 6,180.57 and 2,489.40 is: 3,435.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,478.76 : 6,180.57 = 2,489.40 : x
  2. Step 2: Convert to fraction form
    4,478.76/6,180.57 = 2,489.40/x
  3. Step 3: Cross multiply
    4,478.76x = 6,180.57 × 2,489.40
  4. Step 4: Simplify right side
    4,478.76x = 15,385,910.96
  5. Step 5: Solve for x
    x = 15,385,910.96/4,478.76
  6. Step 6: Final answer
    x = 3,435.31

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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.