Home / 2,318.21-3,201.76-2,287.56

Finding the Fourth Proportional to 2,318.21, 3,201.76 and 2,287.56

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Solution

The fourth proportional to 2,318.21, 3,201.76 and 2,287.56 is: 3,159.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,318.21 : 3,201.76 = 2,287.56 : x
  2. Step 2: Convert to fraction form
    2,318.21/3,201.76 = 2,287.56/x
  3. Step 3: Cross multiply
    2,318.21x = 3,201.76 × 2,287.56
  4. Step 4: Simplify right side
    2,318.21x = 7,324,218.11
  5. Step 5: Solve for x
    x = 7,324,218.11/2,318.21
  6. Step 6: Final answer
    x = 3,159.43

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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.