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Finding the Fourth Proportional to 3,552.69, 4,901.90 and 2,135.90

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Solution

The fourth proportional to 3,552.69, 4,901.90 and 2,135.90 is: 2,947.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,552.69 : 4,901.90 = 2,135.90 : x
  2. Step 2: Convert to fraction form
    3,552.69/4,901.90 = 2,135.90/x
  3. Step 3: Cross multiply
    3,552.69x = 4,901.90 × 2,135.90
  4. Step 4: Simplify right side
    3,552.69x = 10,469,933.02
  5. Step 5: Solve for x
    x = 10,469,933.02/3,552.69
  6. Step 6: Final answer
    x = 2,947.04

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.