Home / 4,490.46-6,731.28-2,149.80

Finding the Fourth Proportional to 4,490.46, 6,731.28 and 2,149.80

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Solution

The fourth proportional to 4,490.46, 6,731.28 and 2,149.80 is: 3,222.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,490.46 : 6,731.28 = 2,149.80 : x
  2. Step 2: Convert to fraction form
    4,490.46/6,731.28 = 2,149.80/x
  3. Step 3: Cross multiply
    4,490.46x = 6,731.28 × 2,149.80
  4. Step 4: Simplify right side
    4,490.46x = 14,470,905.74
  5. Step 5: Solve for x
    x = 14,470,905.74/4,490.46
  6. Step 6: Final answer
    x = 3,222.59

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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.