Home / 3,821.11-5,742.74-2,530.78

Finding the Fourth Proportional to 3,821.11, 5,742.74 and 2,530.78

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Solution

The fourth proportional to 3,821.11, 5,742.74 and 2,530.78 is: 3,803.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,821.11 : 5,742.74 = 2,530.78 : x
  2. Step 2: Convert to fraction form
    3,821.11/5,742.74 = 2,530.78/x
  3. Step 3: Cross multiply
    3,821.11x = 5,742.74 × 2,530.78
  4. Step 4: Simplify right side
    3,821.11x = 14,533,611.54
  5. Step 5: Solve for x
    x = 14,533,611.54/3,821.11
  6. Step 6: Final answer
    x = 3,803.51

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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.