Home / 4,745.40-7,116.27-3,280.11

Finding the Fourth Proportional to 4,745.40, 7,116.27 and 3,280.11

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Solution

The fourth proportional to 4,745.40, 7,116.27 and 3,280.11 is: 4,918.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,745.40 : 7,116.27 = 3,280.11 : x
  2. Step 2: Convert to fraction form
    4,745.40/7,116.27 = 3,280.11/x
  3. Step 3: Cross multiply
    4,745.40x = 7,116.27 × 3,280.11
  4. Step 4: Simplify right side
    4,745.40x = 23,342,148.39
  5. Step 5: Solve for x
    x = 23,342,148.39/4,745.40
  6. Step 6: Final answer
    x = 4,918.90

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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.