Home / 3,486.10-5,236.44-2,939.35

Finding the Fourth Proportional to 3,486.10, 5,236.44 and 2,939.35

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Solution

The fourth proportional to 3,486.10, 5,236.44 and 2,939.35 is: 4,415.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,486.10 : 5,236.44 = 2,939.35 : x
  2. Step 2: Convert to fraction form
    3,486.10/5,236.44 = 2,939.35/x
  3. Step 3: Cross multiply
    3,486.10x = 5,236.44 × 2,939.35
  4. Step 4: Simplify right side
    3,486.10x = 15,391,729.91
  5. Step 5: Solve for x
    x = 15,391,729.91/3,486.10
  6. Step 6: Final answer
    x = 4,415.17

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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.