Home / 2,116.30-3,177.21-1,629.70

Finding the Fourth Proportional to 2,116.30, 3,177.21 and 1,629.70

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Solution

The fourth proportional to 2,116.30, 3,177.21 and 1,629.70 is: 2,446.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,116.30 : 3,177.21 = 1,629.70 : x
  2. Step 2: Convert to fraction form
    2,116.30/3,177.21 = 1,629.70/x
  3. Step 3: Cross multiply
    2,116.30x = 3,177.21 × 1,629.70
  4. Step 4: Simplify right side
    2,116.30x = 5,177,899.14
  5. Step 5: Solve for x
    x = 5,177,899.14/2,116.30
  6. Step 6: Final answer
    x = 2,446.68

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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.