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Finding the Fourth Proportional to 3,887.81, 5,835.22 and 2,635.37

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Solution

The fourth proportional to 3,887.81, 5,835.22 and 2,635.37 is: 3,955.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,887.81 : 5,835.22 = 2,635.37 : x
  2. Step 2: Convert to fraction form
    3,887.81/5,835.22 = 2,635.37/x
  3. Step 3: Cross multiply
    3,887.81x = 5,835.22 × 2,635.37
  4. Step 4: Simplify right side
    3,887.81x = 15,377,981.61
  5. Step 5: Solve for x
    x = 15,377,981.61/3,887.81
  6. Step 6: Final answer
    x = 3,955.44

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1.5x scale

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.