Home / 3,428.50-5,142.21-1,579.54

Finding the Fourth Proportional to 3,428.50, 5,142.21 and 1,579.54

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Solution

The fourth proportional to 3,428.50, 5,142.21 and 1,579.54 is: 2,369.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,428.50 : 5,142.21 = 1,579.54 : x
  2. Step 2: Convert to fraction form
    3,428.50/5,142.21 = 1,579.54/x
  3. Step 3: Cross multiply
    3,428.50x = 5,142.21 × 1,579.54
  4. Step 4: Simplify right side
    3,428.50x = 8,122,326.38
  5. Step 5: Solve for x
    x = 8,122,326.38/3,428.50
  6. Step 6: Final answer
    x = 2,369.06

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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.