Home / 3,855.11-5,320.22-2,438.29

Finding the Fourth Proportional to 3,855.11, 5,320.22 and 2,438.29

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Solution

The fourth proportional to 3,855.11, 5,320.22 and 2,438.29 is: 3,364.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,855.11 : 5,320.22 = 2,438.29 : x
  2. Step 2: Convert to fraction form
    3,855.11/5,320.22 = 2,438.29/x
  3. Step 3: Cross multiply
    3,855.11x = 5,320.22 × 2,438.29
  4. Step 4: Simplify right side
    3,855.11x = 12,972,239.22
  5. Step 5: Solve for x
    x = 12,972,239.22/3,855.11
  6. Step 6: Final answer
    x = 3,364.95

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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.