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Finding the Fourth Proportional to 3,604.54, 5,394.90 and 3,280.72

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Solution

The fourth proportional to 3,604.54, 5,394.90 and 3,280.72 is: 4,910.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,604.54 : 5,394.90 = 3,280.72 : x
  2. Step 2: Convert to fraction form
    3,604.54/5,394.90 = 3,280.72/x
  3. Step 3: Cross multiply
    3,604.54x = 5,394.90 × 3,280.72
  4. Step 4: Simplify right side
    3,604.54x = 17,699,156.33
  5. Step 5: Solve for x
    x = 17,699,156.33/3,604.54
  6. Step 6: Final answer
    x = 4,910.24

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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.