Home / 7,105.76-10,660.28-2,176.12

Finding the Fourth Proportional to 7,105.76, 10,660.28 and 2,176.12

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Solution

The fourth proportional to 7,105.76, 10,660.28 and 2,176.12 is: 3,264.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,105.76 : 10,660.28 = 2,176.12 : x
  2. Step 2: Convert to fraction form
    7,105.76/10,660.28 = 2,176.12/x
  3. Step 3: Cross multiply
    7,105.76x = 10,660.28 × 2,176.12
  4. Step 4: Simplify right side
    7,105.76x = 23,198,048.51
  5. Step 5: Solve for x
    x = 23,198,048.51/7,105.76
  6. Step 6: Final answer
    x = 3,264.68

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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.