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Finding the Fourth Proportional to 7,868.01, 11,800.12 and 2,319.85

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Solution

The fourth proportional to 7,868.01, 11,800.12 and 2,319.85 is: 3,479.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,868.01 : 11,800.12 = 2,319.85 : x
  2. Step 2: Convert to fraction form
    7,868.01/11,800.12 = 2,319.85/x
  3. Step 3: Cross multiply
    7,868.01x = 11,800.12 × 2,319.85
  4. Step 4: Simplify right side
    7,868.01x = 27,374,508.38
  5. Step 5: Solve for x
    x = 27,374,508.38/7,868.01
  6. Step 6: Final answer
    x = 3,479.22

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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.