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Finding the Fourth Proportional to 3,875.50, 5,813.90 and 1,794.65

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Solution

The fourth proportional to 3,875.50, 5,813.90 and 1,794.65 is: 2,692.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,875.50 : 5,813.90 = 1,794.65 : x
  2. Step 2: Convert to fraction form
    3,875.50/5,813.90 = 1,794.65/x
  3. Step 3: Cross multiply
    3,875.50x = 5,813.90 × 1,794.65
  4. Step 4: Simplify right side
    3,875.50x = 10,433,906.66
  5. Step 5: Solve for x
    x = 10,433,906.66/3,875.50
  6. Step 6: Final answer
    x = 2,692.28

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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.