Home / 3,698.05-5,103.11-2,165.44

Finding the Fourth Proportional to 3,698.05, 5,103.11 and 2,165.44

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Solution

The fourth proportional to 3,698.05, 5,103.11 and 2,165.44 is: 2,988.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,698.05 : 5,103.11 = 2,165.44 : x
  2. Step 2: Convert to fraction form
    3,698.05/5,103.11 = 2,165.44/x
  3. Step 3: Cross multiply
    3,698.05x = 5,103.11 × 2,165.44
  4. Step 4: Simplify right side
    3,698.05x = 11,050,467.69
  5. Step 5: Solve for x
    x = 11,050,467.69/3,698.05
  6. Step 6: Final answer
    x = 2,988.19

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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.