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Finding the Fourth Proportional to 2,235, 3,083.67 and 1,761.43

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Solution

The fourth proportional to 2,235, 3,083.67 and 1,761.43 is: 2,430.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,235 : 3,083.67 = 1,761.43 : x
  2. Step 2: Convert to fraction form
    2,235/3,083.67 = 1,761.43/x
  3. Step 3: Cross multiply
    2,235x = 3,083.67 × 1,761.43
  4. Step 4: Simplify right side
    2,235x = 5,431,644.62
  5. Step 5: Solve for x
    x = 5,431,644.62/2,235
  6. Step 6: Final answer
    x = 2,430.27

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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.