Home / 2,808.87-4,206.74-2,219.92

Finding the Fourth Proportional to 2,808.87, 4,206.74 and 2,219.92

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Solution

The fourth proportional to 2,808.87, 4,206.74 and 2,219.92 is: 3,324.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,808.87 : 4,206.74 = 2,219.92 : x
  2. Step 2: Convert to fraction form
    2,808.87/4,206.74 = 2,219.92/x
  3. Step 3: Cross multiply
    2,808.87x = 4,206.74 × 2,219.92
  4. Step 4: Simplify right side
    2,808.87x = 9,338,622.72
  5. Step 5: Solve for x
    x = 9,338,622.72/2,808.87
  6. Step 6: Final answer
    x = 3,324.69

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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.