Home / 4,478.54-6,721.90-2,288.80

Finding the Fourth Proportional to 4,478.54, 6,721.90 and 2,288.80

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Solution

The fourth proportional to 4,478.54, 6,721.90 and 2,288.80 is: 3,435.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,478.54 : 6,721.90 = 2,288.80 : x
  2. Step 2: Convert to fraction form
    4,478.54/6,721.90 = 2,288.80/x
  3. Step 3: Cross multiply
    4,478.54x = 6,721.90 × 2,288.80
  4. Step 4: Simplify right side
    4,478.54x = 15,385,084.72
  5. Step 5: Solve for x
    x = 15,385,084.72/4,478.54
  6. Step 6: Final answer
    x = 3,435.29

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.