Home / 2,836.71-4,255.86-2,020.20

Finding the Fourth Proportional to 2,836.71, 4,255.86 and 2,020.20

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Solution

The fourth proportional to 2,836.71, 4,255.86 and 2,020.20 is: 3,030.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,836.71 : 4,255.86 = 2,020.20 : x
  2. Step 2: Convert to fraction form
    2,836.71/4,255.86 = 2,020.20/x
  3. Step 3: Cross multiply
    2,836.71x = 4,255.86 × 2,020.20
  4. Step 4: Simplify right side
    2,836.71x = 8,597,688.37
  5. Step 5: Solve for x
    x = 8,597,688.37/2,836.71
  6. Step 6: Final answer
    x = 3,030.87

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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.