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Finding the Fourth Proportional to 3,866.48, 5,334.84 and 2,609.88

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Solution

The fourth proportional to 3,866.48, 5,334.84 and 2,609.88 is: 3,601.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,866.48 : 5,334.84 = 2,609.88 : x
  2. Step 2: Convert to fraction form
    3,866.48/5,334.84 = 2,609.88/x
  3. Step 3: Cross multiply
    3,866.48x = 5,334.84 × 2,609.88
  4. Step 4: Simplify right side
    3,866.48x = 13,923,292.22
  5. Step 5: Solve for x
    x = 13,923,292.22/3,866.48
  6. Step 6: Final answer
    x = 3,601.03

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.