Home / 2,664.60-3,996.90-1,691.39

Finding the Fourth Proportional to 2,664.60, 3,996.90 and 1,691.39

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Solution

The fourth proportional to 2,664.60, 3,996.90 and 1,691.39 is: 2,537.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,664.60 : 3,996.90 = 1,691.39 : x
  2. Step 2: Convert to fraction form
    2,664.60/3,996.90 = 1,691.39/x
  3. Step 3: Cross multiply
    2,664.60x = 3,996.90 × 1,691.39
  4. Step 4: Simplify right side
    2,664.60x = 6,760,296.71
  5. Step 5: Solve for x
    x = 6,760,296.71/2,664.60
  6. Step 6: Final answer
    x = 2,537.08

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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.