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Finding the Fourth Proportional to 5,365.50, 8,048.94 and 1,902.78

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Solution

The fourth proportional to 5,365.50, 8,048.94 and 1,902.78 is: 2,854.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,365.50 : 8,048.94 = 1,902.78 : x
  2. Step 2: Convert to fraction form
    5,365.50/8,048.94 = 1,902.78/x
  3. Step 3: Cross multiply
    5,365.50x = 8,048.94 × 1,902.78
  4. Step 4: Simplify right side
    5,365.50x = 15,315,362.05
  5. Step 5: Solve for x
    x = 15,315,362.05/5,365.50
  6. Step 6: Final answer
    x = 2,854.41

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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.