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Finding the Fourth Proportional to 1,792.24, 2,689.28 and 818.22

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Solution

The fourth proportional to 1,792.24, 2,689.28 and 818.22 is: 1,227.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,792.24 : 2,689.28 = 818.22 : x
  2. Step 2: Convert to fraction form
    1,792.24/2,689.28 = 818.22/x
  3. Step 3: Cross multiply
    1,792.24x = 2,689.28 × 818.22
  4. Step 4: Simplify right side
    1,792.24x = 2,200,422.68
  5. Step 5: Solve for x
    x = 2,200,422.68/1,792.24
  6. Step 6: Final answer
    x = 1,227.75

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1.5x scale

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.