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Finding the Fourth Proportional to 2,197.55, 3,295.24 and 810.83

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Solution

The fourth proportional to 2,197.55, 3,295.24 and 810.83 is: 1,215.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,197.55 : 3,295.24 = 810.83 : x
  2. Step 2: Convert to fraction form
    2,197.55/3,295.24 = 810.83/x
  3. Step 3: Cross multiply
    2,197.55x = 3,295.24 × 810.83
  4. Step 4: Simplify right side
    2,197.55x = 2,671,879.45
  5. Step 5: Solve for x
    x = 2,671,879.45/2,197.55
  6. Step 6: Final answer
    x = 1,215.84

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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.