Home / 2,200.70-3,037.65-1,811.90

Finding the Fourth Proportional to 2,200.70, 3,037.65 and 1,811.90

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Solution

The fourth proportional to 2,200.70, 3,037.65 and 1,811.90 is: 2,500.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,200.70 : 3,037.65 = 1,811.90 : x
  2. Step 2: Convert to fraction form
    2,200.70/3,037.65 = 1,811.90/x
  3. Step 3: Cross multiply
    2,200.70x = 3,037.65 × 1,811.90
  4. Step 4: Simplify right side
    2,200.70x = 5,503,918.04
  5. Step 5: Solve for x
    x = 5,503,918.04/2,200.70
  6. Step 6: Final answer
    x = 2,500.99

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.