Home / 5,428.08-8,143.32-2,265.56

Finding the Fourth Proportional to 5,428.08, 8,143.32 and 2,265.56

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Solution

The fourth proportional to 5,428.08, 8,143.32 and 2,265.56 is: 3,398.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,428.08 : 8,143.32 = 2,265.56 : x
  2. Step 2: Convert to fraction form
    5,428.08/8,143.32 = 2,265.56/x
  3. Step 3: Cross multiply
    5,428.08x = 8,143.32 × 2,265.56
  4. Step 4: Simplify right side
    5,428.08x = 18,449,180.06
  5. Step 5: Solve for x
    x = 18,449,180.06/5,428.08
  6. Step 6: Final answer
    x = 3,398.84

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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.