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Finding the Fourth Proportional to 3,368.67, 5,048.55 and 1,520.66

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Solution

The fourth proportional to 3,368.67, 5,048.55 and 1,520.66 is: 2,278.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,368.67 : 5,048.55 = 1,520.66 : x
  2. Step 2: Convert to fraction form
    3,368.67/5,048.55 = 1,520.66/x
  3. Step 3: Cross multiply
    3,368.67x = 5,048.55 × 1,520.66
  4. Step 4: Simplify right side
    3,368.67x = 7,677,102.80
  5. Step 5: Solve for x
    x = 7,677,102.80/3,368.67
  6. Step 6: Final answer
    x = 2,278.97

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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.