Home / 2,716.74-4,072.68-1,985.31

Finding the Fourth Proportional to 2,716.74, 4,072.68 and 1,985.31

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Solution

The fourth proportional to 2,716.74, 4,072.68 and 1,985.31 is: 2,976.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,716.74 : 4,072.68 = 1,985.31 : x
  2. Step 2: Convert to fraction form
    2,716.74/4,072.68 = 1,985.31/x
  3. Step 3: Cross multiply
    2,716.74x = 4,072.68 × 1,985.31
  4. Step 4: Simplify right side
    2,716.74x = 8,085,532.33
  5. Step 5: Solve for x
    x = 8,085,532.33/2,716.74
  6. Step 6: Final answer
    x = 2,976.19

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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.