Home / 3,945.14-5,443.68-2,266.28

Finding the Fourth Proportional to 3,945.14, 5,443.68 and 2,266.28

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Solution

The fourth proportional to 3,945.14, 5,443.68 and 2,266.28 is: 3,127.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,945.14 : 5,443.68 = 2,266.28 : x
  2. Step 2: Convert to fraction form
    3,945.14/5,443.68 = 2,266.28/x
  3. Step 3: Cross multiply
    3,945.14x = 5,443.68 × 2,266.28
  4. Step 4: Simplify right side
    3,945.14x = 12,336,903.11
  5. Step 5: Solve for x
    x = 12,336,903.11/3,945.14
  6. Step 6: Final answer
    x = 3,127.11

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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.