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Finding the Fourth Proportional to 4,480.88, 6,721.30 and 1,706.90

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Solution

The fourth proportional to 4,480.88, 6,721.30 and 1,706.90 is: 2,560.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,480.88 : 6,721.30 = 1,706.90 : x
  2. Step 2: Convert to fraction form
    4,480.88/6,721.30 = 1,706.90/x
  3. Step 3: Cross multiply
    4,480.88x = 6,721.30 × 1,706.90
  4. Step 4: Simplify right side
    4,480.88x = 11,472,586.97
  5. Step 5: Solve for x
    x = 11,472,586.97/4,480.88
  6. Step 6: Final answer
    x = 2,560.34

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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.