Home / 3,396.87-4,688.67-2,218.12

Finding the Fourth Proportional to 3,396.87, 4,688.67 and 2,218.12

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Solution

The fourth proportional to 3,396.87, 4,688.67 and 2,218.12 is: 3,061.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,396.87 : 4,688.67 = 2,218.12 : x
  2. Step 2: Convert to fraction form
    3,396.87/4,688.67 = 2,218.12/x
  3. Step 3: Cross multiply
    3,396.87x = 4,688.67 × 2,218.12
  4. Step 4: Simplify right side
    3,396.87x = 10,400,032.70
  5. Step 5: Solve for x
    x = 10,400,032.70/3,396.87
  6. Step 6: Final answer
    x = 3,061.65

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.