Home / 3,841.21-5,301.12-2,139.99

Finding the Fourth Proportional to 3,841.21, 5,301.12 and 2,139.99

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Solution

The fourth proportional to 3,841.21, 5,301.12 and 2,139.99 is: 2,953.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,841.21 : 5,301.12 = 2,139.99 : x
  2. Step 2: Convert to fraction form
    3,841.21/5,301.12 = 2,139.99/x
  3. Step 3: Cross multiply
    3,841.21x = 5,301.12 × 2,139.99
  4. Step 4: Simplify right side
    3,841.21x = 11,344,351.81
  5. Step 5: Solve for x
    x = 11,344,351.81/3,841.21
  6. Step 6: Final answer
    x = 2,953.33

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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.