Home / 2,210.19-3,311.39-1,167.90

Finding the Fourth Proportional to 2,210.19, 3,311.39 and 1,167.90

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Solution

The fourth proportional to 2,210.19, 3,311.39 and 1,167.90 is: 1,749.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,210.19 : 3,311.39 = 1,167.90 : x
  2. Step 2: Convert to fraction form
    2,210.19/3,311.39 = 1,167.90/x
  3. Step 3: Cross multiply
    2,210.19x = 3,311.39 × 1,167.90
  4. Step 4: Simplify right side
    2,210.19x = 3,867,352.90
  5. Step 5: Solve for x
    x = 3,867,352.90/2,210.19
  6. Step 6: Final answer
    x = 1,749.78

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1.5x scale

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.