Home / 2,838.79-4,252.69-1,378.97

Finding the Fourth Proportional to 2,838.79, 4,252.69 and 1,378.97

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Solution

The fourth proportional to 2,838.79, 4,252.69 and 1,378.97 is: 2,065.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,838.79 : 4,252.69 = 1,378.97 : x
  2. Step 2: Convert to fraction form
    2,838.79/4,252.69 = 1,378.97/x
  3. Step 3: Cross multiply
    2,838.79x = 4,252.69 × 1,378.97
  4. Step 4: Simplify right side
    2,838.79x = 5,864,331.93
  5. Step 5: Solve for x
    x = 5,864,331.93/2,838.79
  6. Step 6: Final answer
    x = 2,065.79

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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.