Home / 3,809.64-5,708.55-2,641.92

Finding the Fourth Proportional to 3,809.64, 5,708.55 and 2,641.92

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Solution

The fourth proportional to 3,809.64, 5,708.55 and 2,641.92 is: 3,958.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,809.64 : 5,708.55 = 2,641.92 : x
  2. Step 2: Convert to fraction form
    3,809.64/5,708.55 = 2,641.92/x
  3. Step 3: Cross multiply
    3,809.64x = 5,708.55 × 2,641.92
  4. Step 4: Simplify right side
    3,809.64x = 15,081,503.87
  5. Step 5: Solve for x
    x = 15,081,503.87/3,809.64
  6. Step 6: Final answer
    x = 3,958.78

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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.