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Finding the Fourth Proportional to 1,761.36, 2,641.61 and 591.41

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Solution

The fourth proportional to 1,761.36, 2,641.61 and 591.41 is: 886.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,761.36 : 2,641.61 = 591.41 : x
  2. Step 2: Convert to fraction form
    1,761.36/2,641.61 = 591.41/x
  3. Step 3: Cross multiply
    1,761.36x = 2,641.61 × 591.41
  4. Step 4: Simplify right side
    1,761.36x = 1,562,258.41
  5. Step 5: Solve for x
    x = 1,562,258.41/1,761.36
  6. Step 6: Final answer
    x = 886.96

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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.