Home / 2,813.60-4,218.11-1,171.37

Finding the Fourth Proportional to 2,813.60, 4,218.11 and 1,171.37

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Solution

The fourth proportional to 2,813.60, 4,218.11 and 1,171.37 is: 1,756.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,813.60 : 4,218.11 = 1,171.37 : x
  2. Step 2: Convert to fraction form
    2,813.60/4,218.11 = 1,171.37/x
  3. Step 3: Cross multiply
    2,813.60x = 4,218.11 × 1,171.37
  4. Step 4: Simplify right side
    2,813.60x = 4,940,980.98
  5. Step 5: Solve for x
    x = 4,940,980.98/2,813.60
  6. Step 6: Final answer
    x = 1,756.11

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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.