Home / 2,800.70-4,204.10-1,631.98

Finding the Fourth Proportional to 2,800.70, 4,204.10 and 1,631.98

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Solution

The fourth proportional to 2,800.70, 4,204.10 and 1,631.98 is: 2,449.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,800.70 : 4,204.10 = 1,631.98 : x
  2. Step 2: Convert to fraction form
    2,800.70/4,204.10 = 1,631.98/x
  3. Step 3: Cross multiply
    2,800.70x = 4,204.10 × 1,631.98
  4. Step 4: Simplify right side
    2,800.70x = 6,861,007.12
  5. Step 5: Solve for x
    x = 6,861,007.12/2,800.70
  6. Step 6: Final answer
    x = 2,449.75

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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.