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Finding the Fourth Proportional to 1,850.32, 2,773.08 and 753.42

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Solution

The fourth proportional to 1,850.32, 2,773.08 and 753.42 is: 1,129.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,850.32 : 2,773.08 = 753.42 : x
  2. Step 2: Convert to fraction form
    1,850.32/2,773.08 = 753.42/x
  3. Step 3: Cross multiply
    1,850.32x = 2,773.08 × 753.42
  4. Step 4: Simplify right side
    1,850.32x = 2,089,293.93
  5. Step 5: Solve for x
    x = 2,089,293.93/1,850.32
  6. Step 6: Final answer
    x = 1,129.15

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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.