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Finding the Fourth Proportional to 7,199.91, 10,801.49 and 2,818.62

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Solution

The fourth proportional to 7,199.91, 10,801.49 and 2,818.62 is: 4,228.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,199.91 : 10,801.49 = 2,818.62 : x
  2. Step 2: Convert to fraction form
    7,199.91/10,801.49 = 2,818.62/x
  3. Step 3: Cross multiply
    7,199.91x = 10,801.49 × 2,818.62
  4. Step 4: Simplify right side
    7,199.91x = 30,445,281.65
  5. Step 5: Solve for x
    x = 30,445,281.65/7,199.91
  6. Step 6: Final answer
    x = 4,228.56

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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.