Home / 5,145.10-7,102.70-3,257.60

Finding the Fourth Proportional to 5,145.10, 7,102.70 and 3,257.60

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Solution

The fourth proportional to 5,145.10, 7,102.70 and 3,257.60 is: 4,497.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,145.10 : 7,102.70 = 3,257.60 : x
  2. Step 2: Convert to fraction form
    5,145.10/7,102.70 = 3,257.60/x
  3. Step 3: Cross multiply
    5,145.10x = 7,102.70 × 3,257.60
  4. Step 4: Simplify right side
    5,145.10x = 23,137,755.52
  5. Step 5: Solve for x
    x = 23,137,755.52/5,145.10
  6. Step 6: Final answer
    x = 4,497.05

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.