Home / 3,428.84-5,143.50-1,697

Finding the Fourth Proportional to 3,428.84, 5,143.50 and 1,697

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Solution

The fourth proportional to 3,428.84, 5,143.50 and 1,697 is: 2,545.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,428.84 : 5,143.50 = 1,697 : x
  2. Step 2: Convert to fraction form
    3,428.84/5,143.50 = 1,697/x
  3. Step 3: Cross multiply
    3,428.84x = 5,143.50 × 1,697
  4. Step 4: Simplify right side
    3,428.84x = 8,728,519.50
  5. Step 5: Solve for x
    x = 8,728,519.50/3,428.84
  6. Step 6: Final answer
    x = 2,545.62

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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.