Home / 3,388.13-4,677.09-2,431.72

Finding the Fourth Proportional to 3,388.13, 4,677.09 and 2,431.72

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Solution

The fourth proportional to 3,388.13, 4,677.09 and 2,431.72 is: 3,356.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,388.13 : 4,677.09 = 2,431.72 : x
  2. Step 2: Convert to fraction form
    3,388.13/4,677.09 = 2,431.72/x
  3. Step 3: Cross multiply
    3,388.13x = 4,677.09 × 2,431.72
  4. Step 4: Simplify right side
    3,388.13x = 11,373,383.70
  5. Step 5: Solve for x
    x = 11,373,383.70/3,388.13
  6. Step 6: Final answer
    x = 3,356.83

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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.