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Finding the Fourth Proportional to 2,173.92, 3,261.35 and 713.02

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Solution

The fourth proportional to 2,173.92, 3,261.35 and 713.02 is: 1,069.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,173.92 : 3,261.35 = 713.02 : x
  2. Step 2: Convert to fraction form
    2,173.92/3,261.35 = 713.02/x
  3. Step 3: Cross multiply
    2,173.92x = 3,261.35 × 713.02
  4. Step 4: Simplify right side
    2,173.92x = 2,325,407.78
  5. Step 5: Solve for x
    x = 2,325,407.78/2,173.92
  6. Step 6: Final answer
    x = 1,069.68

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.