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Finding the Fourth Proportional to 7,279.92, 10,922.94 and 2,898.05

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Solution

The fourth proportional to 7,279.92, 10,922.94 and 2,898.05 is: 4,348.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,279.92 : 10,922.94 = 2,898.05 : x
  2. Step 2: Convert to fraction form
    7,279.92/10,922.94 = 2,898.05/x
  3. Step 3: Cross multiply
    7,279.92x = 10,922.94 × 2,898.05
  4. Step 4: Simplify right side
    7,279.92x = 31,655,171.65
  5. Step 5: Solve for x
    x = 31,655,171.65/7,279.92
  6. Step 6: Final answer
    x = 4,348.29

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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.