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Finding the Fourth Proportional to 1,761.04, 2,641 and 1,646

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Solution

The fourth proportional to 1,761.04, 2,641 and 1,646 is: 2,468.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,761.04 : 2,641 = 1,646 : x
  2. Step 2: Convert to fraction form
    1,761.04/2,641 = 1,646/x
  3. Step 3: Cross multiply
    1,761.04x = 2,641 × 1,646
  4. Step 4: Simplify right side
    1,761.04x = 4,347,086
  5. Step 5: Solve for x
    x = 4,347,086/1,761.04
  6. Step 6: Final answer
    x = 2,468.48

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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.