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Finding the Fourth Proportional to 2,254.58, 3,381.35 and 611.25

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Solution

The fourth proportional to 2,254.58, 3,381.35 and 611.25 is: 916.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,254.58 : 3,381.35 = 611.25 : x
  2. Step 2: Convert to fraction form
    2,254.58/3,381.35 = 611.25/x
  3. Step 3: Cross multiply
    2,254.58x = 3,381.35 × 611.25
  4. Step 4: Simplify right side
    2,254.58x = 2,066,847.13
  5. Step 5: Solve for x
    x = 2,066,847.13/2,254.58
  6. Step 6: Final answer
    x = 916.73

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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.