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Finding the Fourth Proportional to 2,197.22, 3,295.75 and 553.75

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Solution

The fourth proportional to 2,197.22, 3,295.75 and 553.75 is: 830.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,197.22 : 3,295.75 = 553.75 : x
  2. Step 2: Convert to fraction form
    2,197.22/3,295.75 = 553.75/x
  3. Step 3: Cross multiply
    2,197.22x = 3,295.75 × 553.75
  4. Step 4: Simplify right side
    2,197.22x = 1,825,002.32
  5. Step 5: Solve for x
    x = 1,825,002.32/2,197.22
  6. Step 6: Final answer
    x = 830.60

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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.