Home / 2,836.47-4,255.38-2,789.39

Finding the Fourth Proportional to 2,836.47, 4,255.38 and 2,789.39

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Solution

The fourth proportional to 2,836.47, 4,255.38 and 2,789.39 is: 4,184.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,836.47 : 4,255.38 = 2,789.39 : x
  2. Step 2: Convert to fraction form
    2,836.47/4,255.38 = 2,789.39/x
  3. Step 3: Cross multiply
    2,836.47x = 4,255.38 × 2,789.39
  4. Step 4: Simplify right side
    2,836.47x = 11,869,925.06
  5. Step 5: Solve for x
    x = 11,869,925.06/2,836.47
  6. Step 6: Final answer
    x = 4,184.76

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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.