Home / 2,213.62-3,320.06-653.59

Finding the Fourth Proportional to 2,213.62, 3,320.06 and 653.59

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Solution

The fourth proportional to 2,213.62, 3,320.06 and 653.59 is: 980.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,213.62 : 3,320.06 = 653.59 : x
  2. Step 2: Convert to fraction form
    2,213.62/3,320.06 = 653.59/x
  3. Step 3: Cross multiply
    2,213.62x = 3,320.06 × 653.59
  4. Step 4: Simplify right side
    2,213.62x = 2,169,958.90
  5. Step 5: Solve for x
    x = 2,169,958.90/2,213.62
  6. Step 6: Final answer
    x = 980.28

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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.