Home / 2,839.67-3,918.85-1,719.97

Finding the Fourth Proportional to 2,839.67, 3,918.85 and 1,719.97

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Solution

The fourth proportional to 2,839.67, 3,918.85 and 1,719.97 is: 2,373.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,839.67 : 3,918.85 = 1,719.97 : x
  2. Step 2: Convert to fraction form
    2,839.67/3,918.85 = 1,719.97/x
  3. Step 3: Cross multiply
    2,839.67x = 3,918.85 × 1,719.97
  4. Step 4: Simplify right side
    2,839.67x = 6,740,276.24
  5. Step 5: Solve for x
    x = 6,740,276.24/2,839.67
  6. Step 6: Final answer
    x = 2,373.62

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.