Home / 3,844.13-5,305.05-2,166.21

Finding the Fourth Proportional to 3,844.13, 5,305.05 and 2,166.21

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Solution

The fourth proportional to 3,844.13, 5,305.05 and 2,166.21 is: 2,989.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,844.13 : 5,305.05 = 2,166.21 : x
  2. Step 2: Convert to fraction form
    3,844.13/5,305.05 = 2,166.21/x
  3. Step 3: Cross multiply
    3,844.13x = 5,305.05 × 2,166.21
  4. Step 4: Simplify right side
    3,844.13x = 11,491,852.36
  5. Step 5: Solve for x
    x = 11,491,852.36/3,844.13
  6. Step 6: Final answer
    x = 2,989.46

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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.