Home / 5,428.59-8,138.97-3,669.24

Finding the Fourth Proportional to 5,428.59, 8,138.97 and 3,669.24

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Solution

The fourth proportional to 5,428.59, 8,138.97 and 3,669.24 is: 5,501.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,428.59 : 8,138.97 = 3,669.24 : x
  2. Step 2: Convert to fraction form
    5,428.59/8,138.97 = 3,669.24/x
  3. Step 3: Cross multiply
    5,428.59x = 8,138.97 × 3,669.24
  4. Step 4: Simplify right side
    5,428.59x = 29,863,819.02
  5. Step 5: Solve for x
    x = 29,863,819.02/5,428.59
  6. Step 6: Final answer
    x = 5,501.21

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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.