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Finding the Fourth Proportional to 1,465.35, 2,197.90 and 540.73

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Solution

The fourth proportional to 1,465.35, 2,197.90 and 540.73 is: 811.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,465.35 : 2,197.90 = 540.73 : x
  2. Step 2: Convert to fraction form
    1,465.35/2,197.90 = 540.73/x
  3. Step 3: Cross multiply
    1,465.35x = 2,197.90 × 540.73
  4. Step 4: Simplify right side
    1,465.35x = 1,188,470.47
  5. Step 5: Solve for x
    x = 1,188,470.47/1,465.35
  6. Step 6: Final answer
    x = 811.05

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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.