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Finding the Fourth Proportional to 1,736.26, 2,602.23 and 810.61

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Solution

The fourth proportional to 1,736.26, 2,602.23 and 810.61 is: 1,214.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,736.26 : 2,602.23 = 810.61 : x
  2. Step 2: Convert to fraction form
    1,736.26/2,602.23 = 810.61/x
  3. Step 3: Cross multiply
    1,736.26x = 2,602.23 × 810.61
  4. Step 4: Simplify right side
    1,736.26x = 2,109,393.66
  5. Step 5: Solve for x
    x = 2,109,393.66/1,736.26
  6. Step 6: Final answer
    x = 1,214.91

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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.