Home / 3,844.40-5,305.14-2,166.16

Finding the Fourth Proportional to 3,844.40, 5,305.14 and 2,166.16

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Solution

The fourth proportional to 3,844.40, 5,305.14 and 2,166.16 is: 2,989.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,844.40 : 5,305.14 = 2,166.16 : x
  2. Step 2: Convert to fraction form
    3,844.40/5,305.14 = 2,166.16/x
  3. Step 3: Cross multiply
    3,844.40x = 5,305.14 × 2,166.16
  4. Step 4: Simplify right side
    3,844.40x = 11,491,768.80
  5. Step 5: Solve for x
    x = 11,491,768.80/3,844.40
  6. Step 6: Final answer
    x = 2,989.22

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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.