Home / 2,213.36-3,320.04-826.34

Finding the Fourth Proportional to 2,213.36, 3,320.04 and 826.34

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Solution

The fourth proportional to 2,213.36, 3,320.04 and 826.34 is: 1,239.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,213.36 : 3,320.04 = 826.34 : x
  2. Step 2: Convert to fraction form
    2,213.36/3,320.04 = 826.34/x
  3. Step 3: Cross multiply
    2,213.36x = 3,320.04 × 826.34
  4. Step 4: Simplify right side
    2,213.36x = 2,743,465.25
  5. Step 5: Solve for x
    x = 2,743,465.25/2,213.36
  6. Step 6: Final answer
    x = 1,239.51

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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.