Home / 3,428.38-5,138.44-1,576.96

Finding the Fourth Proportional to 3,428.38, 5,138.44 and 1,576.96

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Solution

The fourth proportional to 3,428.38, 5,138.44 and 1,576.96 is: 2,363.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,428.38 : 5,138.44 = 1,576.96 : x
  2. Step 2: Convert to fraction form
    3,428.38/5,138.44 = 1,576.96/x
  3. Step 3: Cross multiply
    3,428.38x = 5,138.44 × 1,576.96
  4. Step 4: Simplify right side
    3,428.38x = 8,103,097.55
  5. Step 5: Solve for x
    x = 8,103,097.55/3,428.38
  6. Step 6: Final answer
    x = 2,363.53

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1.5x scale

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.