Home / 7,107.60-10,661.41-2,176.61

Finding the Fourth Proportional to 7,107.60, 10,661.41 and 2,176.61

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Solution

The fourth proportional to 7,107.60, 10,661.41 and 2,176.61 is: 3,264.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,107.60 : 10,661.41 = 2,176.61 : x
  2. Step 2: Convert to fraction form
    7,107.60/10,661.41 = 2,176.61/x
  3. Step 3: Cross multiply
    7,107.60x = 10,661.41 × 2,176.61
  4. Step 4: Simplify right side
    7,107.60x = 23,205,728.76
  5. Step 5: Solve for x
    x = 23,205,728.76/7,107.60
  6. Step 6: Final answer
    x = 3,264.92

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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.