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Finding the Fourth Proportional to 3,595.80, 5,382.90 and 3,163.80

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Solution

The fourth proportional to 3,595.80, 5,382.90 and 3,163.80 is: 4,736.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,595.80 : 5,382.90 = 3,163.80 : x
  2. Step 2: Convert to fraction form
    3,595.80/5,382.90 = 3,163.80/x
  3. Step 3: Cross multiply
    3,595.80x = 5,382.90 × 3,163.80
  4. Step 4: Simplify right side
    3,595.80x = 17,030,419.02
  5. Step 5: Solve for x
    x = 17,030,419.02/3,595.80
  6. Step 6: Final answer
    x = 4,736.20

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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.