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Finding the Fourth Proportional to 3,787.79, 5,678.03 and 2,396.88

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Solution

The fourth proportional to 3,787.79, 5,678.03 and 2,396.88 is: 3,593.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,787.79 : 5,678.03 = 2,396.88 : x
  2. Step 2: Convert to fraction form
    3,787.79/5,678.03 = 2,396.88/x
  3. Step 3: Cross multiply
    3,787.79x = 5,678.03 × 2,396.88
  4. Step 4: Simplify right side
    3,787.79x = 13,609,562.54
  5. Step 5: Solve for x
    x = 13,609,562.54/3,787.79
  6. Step 6: Final answer
    x = 3,593.01

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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.