Home / 2,800.68-4,204.71-1,631.76

Finding the Fourth Proportional to 2,800.68, 4,204.71 and 1,631.76

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Solution

The fourth proportional to 2,800.68, 4,204.71 and 1,631.76 is: 2,449.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,800.68 : 4,204.71 = 1,631.76 : x
  2. Step 2: Convert to fraction form
    2,800.68/4,204.71 = 1,631.76/x
  3. Step 3: Cross multiply
    2,800.68x = 4,204.71 × 1,631.76
  4. Step 4: Simplify right side
    2,800.68x = 6,861,077.59
  5. Step 5: Solve for x
    x = 6,861,077.59/2,800.68
  6. Step 6: Final answer
    x = 2,449.79

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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.