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Finding the Fourth Proportional to 3,235.70, 4,850.68 and 1,916.21

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Solution

The fourth proportional to 3,235.70, 4,850.68 and 1,916.21 is: 2,872.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,235.70 : 4,850.68 = 1,916.21 : x
  2. Step 2: Convert to fraction form
    3,235.70/4,850.68 = 1,916.21/x
  3. Step 3: Cross multiply
    3,235.70x = 4,850.68 × 1,916.21
  4. Step 4: Simplify right side
    3,235.70x = 9,294,921.52
  5. Step 5: Solve for x
    x = 9,294,921.52/3,235.70
  6. Step 6: Final answer
    x = 2,872.62

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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.