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Finding the Fourth Proportional to 2,193, 3,025.58 and 1,248.68

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Solution

The fourth proportional to 2,193, 3,025.58 and 1,248.68 is: 1,722.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,193 : 3,025.58 = 1,248.68 : x
  2. Step 2: Convert to fraction form
    2,193/3,025.58 = 1,248.68/x
  3. Step 3: Cross multiply
    2,193x = 3,025.58 × 1,248.68
  4. Step 4: Simplify right side
    2,193x = 3,777,981.23
  5. Step 5: Solve for x
    x = 3,777,981.23/2,193
  6. Step 6: Final answer
    x = 1,722.75

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.