Home / 3,884.40-5,820.66-2,909.88

Finding the Fourth Proportional to 3,884.40, 5,820.66 and 2,909.88

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Solution

The fourth proportional to 3,884.40, 5,820.66 and 2,909.88 is: 4,360.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,884.40 : 5,820.66 = 2,909.88 : x
  2. Step 2: Convert to fraction form
    3,884.40/5,820.66 = 2,909.88/x
  3. Step 3: Cross multiply
    3,884.40x = 5,820.66 × 2,909.88
  4. Step 4: Simplify right side
    3,884.40x = 16,937,422.12
  5. Step 5: Solve for x
    x = 16,937,422.12/3,884.40
  6. Step 6: Final answer
    x = 4,360.37

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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.