Home / 4,748.96-7,123.61-1,787.09

Finding the Fourth Proportional to 4,748.96, 7,123.61 and 1,787.09

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Solution

The fourth proportional to 4,748.96, 7,123.61 and 1,787.09 is: 2,680.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,748.96 : 7,123.61 = 1,787.09 : x
  2. Step 2: Convert to fraction form
    4,748.96/7,123.61 = 1,787.09/x
  3. Step 3: Cross multiply
    4,748.96x = 7,123.61 × 1,787.09
  4. Step 4: Simplify right side
    4,748.96x = 12,730,487.64
  5. Step 5: Solve for x
    x = 12,730,487.64/4,748.96
  6. Step 6: Final answer
    x = 2,680.69

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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.