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Finding the Fourth Proportional to 1,761.76, 2,641.81 and 650.89

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Solution

The fourth proportional to 1,761.76, 2,641.81 and 650.89 is: 976.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,761.76 : 2,641.81 = 650.89 : x
  2. Step 2: Convert to fraction form
    1,761.76/2,641.81 = 650.89/x
  3. Step 3: Cross multiply
    1,761.76x = 2,641.81 × 650.89
  4. Step 4: Simplify right side
    1,761.76x = 1,719,527.71
  5. Step 5: Solve for x
    x = 1,719,527.71/1,761.76
  6. Step 6: Final answer
    x = 976.03

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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.