Home / 3,887.21-5,367.11-2,395.59

Finding the Fourth Proportional to 3,887.21, 5,367.11 and 2,395.59

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Solution

The fourth proportional to 3,887.21, 5,367.11 and 2,395.59 is: 3,307.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,887.21 : 5,367.11 = 2,395.59 : x
  2. Step 2: Convert to fraction form
    3,887.21/5,367.11 = 2,395.59/x
  3. Step 3: Cross multiply
    3,887.21x = 5,367.11 × 2,395.59
  4. Step 4: Simplify right side
    3,887.21x = 12,857,383.07
  5. Step 5: Solve for x
    x = 12,857,383.07/3,887.21
  6. Step 6: Final answer
    x = 3,307.62

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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.