Home / 2,408.23-3,318.18-1,620.91

Finding the Fourth Proportional to 2,408.23, 3,318.18 and 1,620.91

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Solution

The fourth proportional to 2,408.23, 3,318.18 and 1,620.91 is: 2,233.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,408.23 : 3,318.18 = 1,620.91 : x
  2. Step 2: Convert to fraction form
    2,408.23/3,318.18 = 1,620.91/x
  3. Step 3: Cross multiply
    2,408.23x = 3,318.18 × 1,620.91
  4. Step 4: Simplify right side
    2,408.23x = 5,378,471.14
  5. Step 5: Solve for x
    x = 5,378,471.14/2,408.23
  6. Step 6: Final answer
    x = 2,233.37

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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.