Home / 2,418.18-3,609.90-2,311.80

Finding the Fourth Proportional to 2,418.18, 3,609.90 and 2,311.80

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Solution

The fourth proportional to 2,418.18, 3,609.90 and 2,311.80 is: 3,451.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,418.18 : 3,609.90 = 2,311.80 : x
  2. Step 2: Convert to fraction form
    2,418.18/3,609.90 = 2,311.80/x
  3. Step 3: Cross multiply
    2,418.18x = 3,609.90 × 2,311.80
  4. Step 4: Simplify right side
    2,418.18x = 8,345,366.82
  5. Step 5: Solve for x
    x = 8,345,366.82/2,418.18
  6. Step 6: Final answer
    x = 3,451.09

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.