Home / 6,749.78-10,124.61-2,132.78

Finding the Fourth Proportional to 6,749.78, 10,124.61 and 2,132.78

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Solution

The fourth proportional to 6,749.78, 10,124.61 and 2,132.78 is: 3,199.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,749.78 : 10,124.61 = 2,132.78 : x
  2. Step 2: Convert to fraction form
    6,749.78/10,124.61 = 2,132.78/x
  3. Step 3: Cross multiply
    6,749.78x = 10,124.61 × 2,132.78
  4. Step 4: Simplify right side
    6,749.78x = 21,593,565.72
  5. Step 5: Solve for x
    x = 21,593,565.72/6,749.78
  6. Step 6: Final answer
    x = 3,199.15

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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.