Home / 2,238.10-3,357.15-2,143.30

Finding the Fourth Proportional to 2,238.10, 3,357.15 and 2,143.30

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Solution

The fourth proportional to 2,238.10, 3,357.15 and 2,143.30 is: 3,214.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,238.10 : 3,357.15 = 2,143.30 : x
  2. Step 2: Convert to fraction form
    2,238.10/3,357.15 = 2,143.30/x
  3. Step 3: Cross multiply
    2,238.10x = 3,357.15 × 2,143.30
  4. Step 4: Simplify right side
    2,238.10x = 7,195,379.60
  5. Step 5: Solve for x
    x = 7,195,379.60/2,238.10
  6. Step 6: Final answer
    x = 3,214.95

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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.