Home / 3,698.29-5,105.52-2,857.11

Finding the Fourth Proportional to 3,698.29, 5,105.52 and 2,857.11

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Solution

The fourth proportional to 3,698.29, 5,105.52 and 2,857.11 is: 3,944.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,698.29 : 5,105.52 = 2,857.11 : x
  2. Step 2: Convert to fraction form
    3,698.29/5,105.52 = 2,857.11/x
  3. Step 3: Cross multiply
    3,698.29x = 5,105.52 × 2,857.11
  4. Step 4: Simplify right side
    3,698.29x = 14,587,032.25
  5. Step 5: Solve for x
    x = 14,587,032.25/3,698.29
  6. Step 6: Final answer
    x = 3,944.26

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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.