Home / 3,945.81-5,443.68-2,266.60

Finding the Fourth Proportional to 3,945.81, 5,443.68 and 2,266.60

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Solution

The fourth proportional to 3,945.81, 5,443.68 and 2,266.60 is: 3,127.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,945.81 : 5,443.68 = 2,266.60 : x
  2. Step 2: Convert to fraction form
    3,945.81/5,443.68 = 2,266.60/x
  3. Step 3: Cross multiply
    3,945.81x = 5,443.68 × 2,266.60
  4. Step 4: Simplify right side
    3,945.81x = 12,338,645.09
  5. Step 5: Solve for x
    x = 12,338,645.09/3,945.81
  6. Step 6: Final answer
    x = 3,127.02

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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.