Home / 3,698.49-5,548.85-2,138.14

Finding the Fourth Proportional to 3,698.49, 5,548.85 and 2,138.14

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Solution

The fourth proportional to 3,698.49, 5,548.85 and 2,138.14 is: 3,207.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,698.49 : 5,548.85 = 2,138.14 : x
  2. Step 2: Convert to fraction form
    3,698.49/5,548.85 = 2,138.14/x
  3. Step 3: Cross multiply
    3,698.49x = 5,548.85 × 2,138.14
  4. Step 4: Simplify right side
    3,698.49x = 11,864,218.14
  5. Step 5: Solve for x
    x = 11,864,218.14/3,698.49
  6. Step 6: Final answer
    x = 3,207.85

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1.5x scale

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.