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Finding the Fourth Proportional to 1,791.48, 2,696.97 and 1,612.89

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Solution

The fourth proportional to 1,791.48, 2,696.97 and 1,612.89 is: 2,428.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,791.48 : 2,696.97 = 1,612.89 : x
  2. Step 2: Convert to fraction form
    1,791.48/2,696.97 = 1,612.89/x
  3. Step 3: Cross multiply
    1,791.48x = 2,696.97 × 1,612.89
  4. Step 4: Simplify right side
    1,791.48x = 4,349,915.94
  5. Step 5: Solve for x
    x = 4,349,915.94/1,791.48
  6. Step 6: Final answer
    x = 2,428.11

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.