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Finding the Fourth Proportional to 3,972.04, 5,478.06 and 3,753.16

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Solution

The fourth proportional to 3,972.04, 5,478.06 and 3,753.16 is: 5,176.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,972.04 : 5,478.06 = 3,753.16 : x
  2. Step 2: Convert to fraction form
    3,972.04/5,478.06 = 3,753.16/x
  3. Step 3: Cross multiply
    3,972.04x = 5,478.06 × 3,753.16
  4. Step 4: Simplify right side
    3,972.04x = 20,560,035.67
  5. Step 5: Solve for x
    x = 20,560,035.67/3,972.04
  6. Step 6: Final answer
    x = 5,176.19

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.