Home / 7,140.22-10,702.97-2,982.65

Finding the Fourth Proportional to 7,140.22, 10,702.97 and 2,982.65

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Solution

The fourth proportional to 7,140.22, 10,702.97 and 2,982.65 is: 4,470.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,140.22 : 10,702.97 = 2,982.65 : x
  2. Step 2: Convert to fraction form
    7,140.22/10,702.97 = 2,982.65/x
  3. Step 3: Cross multiply
    7,140.22x = 10,702.97 × 2,982.65
  4. Step 4: Simplify right side
    7,140.22x = 31,923,198.56
  5. Step 5: Solve for x
    x = 31,923,198.56/7,140.22
  6. Step 6: Final answer
    x = 4,470.90

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1.5x scale

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.