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Finding the Fourth Proportional to 2,254.77, 3,381.62 and 611.45

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Solution

The fourth proportional to 2,254.77, 3,381.62 and 611.45 is: 917.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,254.77 : 3,381.62 = 611.45 : x
  2. Step 2: Convert to fraction form
    2,254.77/3,381.62 = 611.45/x
  3. Step 3: Cross multiply
    2,254.77x = 3,381.62 × 611.45
  4. Step 4: Simplify right side
    2,254.77x = 2,067,684.26
  5. Step 5: Solve for x
    x = 2,067,684.26/2,254.77
  6. Step 6: Final answer
    x = 917.03

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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.