Home / 3,401.78-5,107.53-1,942.70

Finding the Fourth Proportional to 3,401.78, 5,107.53 and 1,942.70

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Solution

The fourth proportional to 3,401.78, 5,107.53 and 1,942.70 is: 2,916.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,401.78 : 5,107.53 = 1,942.70 : x
  2. Step 2: Convert to fraction form
    3,401.78/5,107.53 = 1,942.70/x
  3. Step 3: Cross multiply
    3,401.78x = 5,107.53 × 1,942.70
  4. Step 4: Simplify right side
    3,401.78x = 9,922,398.53
  5. Step 5: Solve for x
    x = 9,922,398.53/3,401.78
  6. Step 6: Final answer
    x = 2,916.83

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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.