Home / 2,408.19-3,326.04-1,620.87

Finding the Fourth Proportional to 2,408.19, 3,326.04 and 1,620.87

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Solution

The fourth proportional to 2,408.19, 3,326.04 and 1,620.87 is: 2,238.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,408.19 : 3,326.04 = 1,620.87 : x
  2. Step 2: Convert to fraction form
    2,408.19/3,326.04 = 1,620.87/x
  3. Step 3: Cross multiply
    2,408.19x = 3,326.04 × 1,620.87
  4. Step 4: Simplify right side
    2,408.19x = 5,391,057.77
  5. Step 5: Solve for x
    x = 5,391,057.77/2,408.19
  6. Step 6: Final answer
    x = 2,238.64

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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.