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Finding the Fourth Proportional to 3,747.84, 5,626.56 and 2,728.32

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Solution

The fourth proportional to 3,747.84, 5,626.56 and 2,728.32 is: 4,095.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,747.84 : 5,626.56 = 2,728.32 : x
  2. Step 2: Convert to fraction form
    3,747.84/5,626.56 = 2,728.32/x
  3. Step 3: Cross multiply
    3,747.84x = 5,626.56 × 2,728.32
  4. Step 4: Simplify right side
    3,747.84x = 15,351,056.18
  5. Step 5: Solve for x
    x = 15,351,056.18/3,747.84
  6. Step 6: Final answer
    x = 4,095.97

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1.5x scale

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.