Home / 2,838.97-3,918.12-1,719.88

Finding the Fourth Proportional to 2,838.97, 3,918.12 and 1,719.88

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Solution

The fourth proportional to 2,838.97, 3,918.12 and 1,719.88 is: 2,373.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,838.97 : 3,918.12 = 1,719.88 : x
  2. Step 2: Convert to fraction form
    2,838.97/3,918.12 = 1,719.88/x
  3. Step 3: Cross multiply
    2,838.97x = 3,918.12 × 1,719.88
  4. Step 4: Simplify right side
    2,838.97x = 6,738,686.43
  5. Step 5: Solve for x
    x = 6,738,686.43/2,838.97
  6. Step 6: Final answer
    x = 2,373.64

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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.