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Finding the Fourth Proportional to 1,760.26, 2,640.18 and 461.83

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Solution

The fourth proportional to 1,760.26, 2,640.18 and 461.83 is: 692.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,760.26 : 2,640.18 = 461.83 : x
  2. Step 2: Convert to fraction form
    1,760.26/2,640.18 = 461.83/x
  3. Step 3: Cross multiply
    1,760.26x = 2,640.18 × 461.83
  4. Step 4: Simplify right side
    1,760.26x = 1,219,309.46
  5. Step 5: Solve for x
    x = 1,219,309.46/1,760.26
  6. Step 6: Final answer
    x = 692.69

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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.