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Finding the Fourth Proportional to 3,329.62, 4,985.18 and 2,160.98

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Solution

The fourth proportional to 3,329.62, 4,985.18 and 2,160.98 is: 3,235.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,329.62 : 4,985.18 = 2,160.98 : x
  2. Step 2: Convert to fraction form
    3,329.62/4,985.18 = 2,160.98/x
  3. Step 3: Cross multiply
    3,329.62x = 4,985.18 × 2,160.98
  4. Step 4: Simplify right side
    3,329.62x = 10,772,874.28
  5. Step 5: Solve for x
    x = 10,772,874.28/3,329.62
  6. Step 6: Final answer
    x = 3,235.47

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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.