Home / 3,287.46-4,538.76-2,447.22

Finding the Fourth Proportional to 3,287.46, 4,538.76 and 2,447.22

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Solution

The fourth proportional to 3,287.46, 4,538.76 and 2,447.22 is: 3,378.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,287.46 : 4,538.76 = 2,447.22 : x
  2. Step 2: Convert to fraction form
    3,287.46/4,538.76 = 2,447.22/x
  3. Step 3: Cross multiply
    3,287.46x = 4,538.76 × 2,447.22
  4. Step 4: Simplify right side
    3,287.46x = 11,107,344.25
  5. Step 5: Solve for x
    x = 11,107,344.25/3,287.46
  6. Step 6: Final answer
    x = 3,378.70

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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.