Home / 3,605.20-4,974.42-2,189.63

Finding the Fourth Proportional to 3,605.20, 4,974.42 and 2,189.63

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Solution

The fourth proportional to 3,605.20, 4,974.42 and 2,189.63 is: 3,021.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,605.20 : 4,974.42 = 2,189.63 : x
  2. Step 2: Convert to fraction form
    3,605.20/4,974.42 = 2,189.63/x
  3. Step 3: Cross multiply
    3,605.20x = 4,974.42 × 2,189.63
  4. Step 4: Simplify right side
    3,605.20x = 10,892,139.26
  5. Step 5: Solve for x
    x = 10,892,139.26/3,605.20
  6. Step 6: Final answer
    x = 3,021.23

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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.