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Finding the Fourth Proportional to 752.22, 1,121.70 and 700.29

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Solution

The fourth proportional to 752.22, 1,121.70 and 700.29 is: 1,044.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    752.22 : 1,121.70 = 700.29 : x
  2. Step 2: Convert to fraction form
    752.22/1,121.70 = 700.29/x
  3. Step 3: Cross multiply
    752.22x = 1,121.70 × 700.29
  4. Step 4: Simplify right side
    752.22x = 785,515.29
  5. Step 5: Solve for x
    x = 785,515.29/752.22
  6. Step 6: Final answer
    x = 1,044.26

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.