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Finding the Fourth Proportional to 6,721.84, 10,079.04 and 2,772.04

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Solution

The fourth proportional to 6,721.84, 10,079.04 and 2,772.04 is: 4,156.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,721.84 : 10,079.04 = 2,772.04 : x
  2. Step 2: Convert to fraction form
    6,721.84/10,079.04 = 2,772.04/x
  3. Step 3: Cross multiply
    6,721.84x = 10,079.04 × 2,772.04
  4. Step 4: Simplify right side
    6,721.84x = 27,939,502.04
  5. Step 5: Solve for x
    x = 27,939,502.04/6,721.84
  6. Step 6: Final answer
    x = 4,156.53

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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.