Home / 1,790.20-2,683.68-635.68

Finding the Fourth Proportional to 1,790.20, 2,683.68 and 635.68

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Solution

The fourth proportional to 1,790.20, 2,683.68 and 635.68 is: 952.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,790.20 : 2,683.68 = 635.68 : x
  2. Step 2: Convert to fraction form
    1,790.20/2,683.68 = 635.68/x
  3. Step 3: Cross multiply
    1,790.20x = 2,683.68 × 635.68
  4. Step 4: Simplify right side
    1,790.20x = 1,705,961.70
  5. Step 5: Solve for x
    x = 1,705,961.70/1,790.20
  6. Step 6: Final answer
    x = 952.94

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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.