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Finding the Fourth Proportional to 1,755.41, 2,422.37 and 1,009.43

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Solution

The fourth proportional to 1,755.41, 2,422.37 and 1,009.43 is: 1,392.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,755.41 : 2,422.37 = 1,009.43 : x
  2. Step 2: Convert to fraction form
    1,755.41/2,422.37 = 1,009.43/x
  3. Step 3: Cross multiply
    1,755.41x = 2,422.37 × 1,009.43
  4. Step 4: Simplify right side
    1,755.41x = 2,445,207.90
  5. Step 5: Solve for x
    x = 2,445,207.90/1,755.41
  6. Step 6: Final answer
    x = 1,392.96

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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.