Home / 1,775.43-2,450.33-1,279.71

Finding the Fourth Proportional to 1,775.43, 2,450.33 and 1,279.71

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Solution

The fourth proportional to 1,775.43, 2,450.33 and 1,279.71 is: 1,766.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,775.43 : 2,450.33 = 1,279.71 : x
  2. Step 2: Convert to fraction form
    1,775.43/2,450.33 = 1,279.71/x
  3. Step 3: Cross multiply
    1,775.43x = 2,450.33 × 1,279.71
  4. Step 4: Simplify right side
    1,775.43x = 3,135,705.41
  5. Step 5: Solve for x
    x = 3,135,705.41/1,775.43
  6. Step 6: Final answer
    x = 1,766.17

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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.