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Finding the Fourth Proportional to 6,663.43, 9,993.07 and 2,279.86

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Solution

The fourth proportional to 6,663.43, 9,993.07 and 2,279.86 is: 3,419.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,663.43 : 9,993.07 = 2,279.86 : x
  2. Step 2: Convert to fraction form
    6,663.43/9,993.07 = 2,279.86/x
  3. Step 3: Cross multiply
    6,663.43x = 9,993.07 × 2,279.86
  4. Step 4: Simplify right side
    6,663.43x = 22,782,800.57
  5. Step 5: Solve for x
    x = 22,782,800.57/6,663.43
  6. Step 6: Final answer
    x = 3,419.08

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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.