Home / 2,839.28-3,918.27-1,719.99

Finding the Fourth Proportional to 2,839.28, 3,918.27 and 1,719.99

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Solution

The fourth proportional to 2,839.28, 3,918.27 and 1,719.99 is: 2,373.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,839.28 : 3,918.27 = 1,719.99 : x
  2. Step 2: Convert to fraction form
    2,839.28/3,918.27 = 1,719.99/x
  3. Step 3: Cross multiply
    2,839.28x = 3,918.27 × 1,719.99
  4. Step 4: Simplify right side
    2,839.28x = 6,739,385.22
  5. Step 5: Solve for x
    x = 6,739,385.22/2,839.28
  6. Step 6: Final answer
    x = 2,373.63

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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.