Home / 2,856.07-4,284.71-1,212.58

Finding the Fourth Proportional to 2,856.07, 4,284.71 and 1,212.58

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Solution

The fourth proportional to 2,856.07, 4,284.71 and 1,212.58 is: 1,819.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,856.07 : 4,284.71 = 1,212.58 : x
  2. Step 2: Convert to fraction form
    2,856.07/4,284.71 = 1,212.58/x
  3. Step 3: Cross multiply
    2,856.07x = 4,284.71 × 1,212.58
  4. Step 4: Simplify right side
    2,856.07x = 5,195,553.65
  5. Step 5: Solve for x
    x = 5,195,553.65/2,856.07
  6. Step 6: Final answer
    x = 1,819.13

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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.