Home / 4,787.40-7,169.58-3,243.72

Finding the Fourth Proportional to 4,787.40, 7,169.58 and 3,243.72

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Solution

The fourth proportional to 4,787.40, 7,169.58 and 3,243.72 is: 4,857.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,787.40 : 7,169.58 = 3,243.72 : x
  2. Step 2: Convert to fraction form
    4,787.40/7,169.58 = 3,243.72/x
  3. Step 3: Cross multiply
    4,787.40x = 7,169.58 × 3,243.72
  4. Step 4: Simplify right side
    4,787.40x = 23,256,110.04
  5. Step 5: Solve for x
    x = 23,256,110.04/4,787.40
  6. Step 6: Final answer
    x = 4,857.77

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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.