Home / 3,806.86-5,251.92-2,531.35

Finding the Fourth Proportional to 3,806.86, 5,251.92 and 2,531.35

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Solution

The fourth proportional to 3,806.86, 5,251.92 and 2,531.35 is: 3,492.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,806.86 : 5,251.92 = 2,531.35 : x
  2. Step 2: Convert to fraction form
    3,806.86/5,251.92 = 2,531.35/x
  3. Step 3: Cross multiply
    3,806.86x = 5,251.92 × 2,531.35
  4. Step 4: Simplify right side
    3,806.86x = 13,294,421.43
  5. Step 5: Solve for x
    x = 13,294,421.43/3,806.86
  6. Step 6: Final answer
    x = 3,492.23

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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.