Home / 3,911.09-5,396.22-2,419.07

Finding the Fourth Proportional to 3,911.09, 5,396.22 and 2,419.07

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Solution

The fourth proportional to 3,911.09, 5,396.22 and 2,419.07 is: 3,337.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,911.09 : 5,396.22 = 2,419.07 : x
  2. Step 2: Convert to fraction form
    3,911.09/5,396.22 = 2,419.07/x
  3. Step 3: Cross multiply
    3,911.09x = 5,396.22 × 2,419.07
  4. Step 4: Simplify right side
    3,911.09x = 13,053,806.93
  5. Step 5: Solve for x
    x = 13,053,806.93/3,911.09
  6. Step 6: Final answer
    x = 3,337.64

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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.