Home / 4,688.92-7,044.31-2,742.49

Finding the Fourth Proportional to 4,688.92, 7,044.31 and 2,742.49

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Solution

The fourth proportional to 4,688.92, 7,044.31 and 2,742.49 is: 4,120.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,688.92 : 7,044.31 = 2,742.49 : x
  2. Step 2: Convert to fraction form
    4,688.92/7,044.31 = 2,742.49/x
  3. Step 3: Cross multiply
    4,688.92x = 7,044.31 × 2,742.49
  4. Step 4: Simplify right side
    4,688.92x = 19,318,949.73
  5. Step 5: Solve for x
    x = 19,318,949.73/4,688.92
  6. Step 6: Final answer
    x = 4,120.13

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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.