Home / 3,767.12-5,198.64-2,111.12

Finding the Fourth Proportional to 3,767.12, 5,198.64 and 2,111.12

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Solution

The fourth proportional to 3,767.12, 5,198.64 and 2,111.12 is: 2,913.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,767.12 : 5,198.64 = 2,111.12 : x
  2. Step 2: Convert to fraction form
    3,767.12/5,198.64 = 2,111.12/x
  3. Step 3: Cross multiply
    3,767.12x = 5,198.64 × 2,111.12
  4. Step 4: Simplify right side
    3,767.12x = 10,974,952.88
  5. Step 5: Solve for x
    x = 10,974,952.88/3,767.12
  6. Step 6: Final answer
    x = 2,913.35

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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.