Home / 2,213.22-3,320.13-653.34

Finding the Fourth Proportional to 2,213.22, 3,320.13 and 653.34

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Solution

The fourth proportional to 2,213.22, 3,320.13 and 653.34 is: 980.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,213.22 : 3,320.13 = 653.34 : x
  2. Step 2: Convert to fraction form
    2,213.22/3,320.13 = 653.34/x
  3. Step 3: Cross multiply
    2,213.22x = 3,320.13 × 653.34
  4. Step 4: Simplify right side
    2,213.22x = 2,169,157.13
  5. Step 5: Solve for x
    x = 2,169,157.13/2,213.22
  6. Step 6: Final answer
    x = 980.09

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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.