Home / 3,100.28-4,651.22-1,020.60

Finding the Fourth Proportional to 3,100.28, 4,651.22 and 1,020.60

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Solution

The fourth proportional to 3,100.28, 4,651.22 and 1,020.60 is: 1,531.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,100.28 : 4,651.22 = 1,020.60 : x
  2. Step 2: Convert to fraction form
    3,100.28/4,651.22 = 1,020.60/x
  3. Step 3: Cross multiply
    3,100.28x = 4,651.22 × 1,020.60
  4. Step 4: Simplify right side
    3,100.28x = 4,747,037.68
  5. Step 5: Solve for x
    x = 4,747,037.68/3,100.28
  6. Step 6: Final answer
    x = 1,531.17

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.