Home / 2,469.99-3,409.82-1,909.19

Finding the Fourth Proportional to 2,469.99, 3,409.82 and 1,909.19

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Solution

The fourth proportional to 2,469.99, 3,409.82 and 1,909.19 is: 2,635.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,469.99 : 3,409.82 = 1,909.19 : x
  2. Step 2: Convert to fraction form
    2,469.99/3,409.82 = 1,909.19/x
  3. Step 3: Cross multiply
    2,469.99x = 3,409.82 × 1,909.19
  4. Step 4: Simplify right side
    2,469.99x = 6,509,972.42
  5. Step 5: Solve for x
    x = 6,509,972.42/2,469.99
  6. Step 6: Final answer
    x = 2,635.63

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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.