Home / 3,884.51-5,821.56-2,126.86

Finding the Fourth Proportional to 3,884.51, 5,821.56 and 2,126.86

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Solution

The fourth proportional to 3,884.51, 5,821.56 and 2,126.86 is: 3,187.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,884.51 : 5,821.56 = 2,126.86 : x
  2. Step 2: Convert to fraction form
    3,884.51/5,821.56 = 2,126.86/x
  3. Step 3: Cross multiply
    3,884.51x = 5,821.56 × 2,126.86
  4. Step 4: Simplify right side
    3,884.51x = 12,381,625.56
  5. Step 5: Solve for x
    x = 12,381,625.56/3,884.51
  6. Step 6: Final answer
    x = 3,187.44

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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.