Home / 4,787.32-7,179.78-3,396.60

Finding the Fourth Proportional to 4,787.32, 7,179.78 and 3,396.60

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Solution

The fourth proportional to 4,787.32, 7,179.78 and 3,396.60 is: 5,094.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,787.32 : 7,179.78 = 3,396.60 : x
  2. Step 2: Convert to fraction form
    4,787.32/7,179.78 = 3,396.60/x
  3. Step 3: Cross multiply
    4,787.32x = 7,179.78 × 3,396.60
  4. Step 4: Simplify right side
    4,787.32x = 24,386,840.75
  5. Step 5: Solve for x
    x = 24,386,840.75/4,787.32
  6. Step 6: Final answer
    x = 5,094.05

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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.