Home / 2,910.40-4,355.04-1,613.12

Finding the Fourth Proportional to 2,910.40, 4,355.04 and 1,613.12

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Solution

The fourth proportional to 2,910.40, 4,355.04 and 1,613.12 is: 2,413.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,910.40 : 4,355.04 = 1,613.12 : x
  2. Step 2: Convert to fraction form
    2,910.40/4,355.04 = 1,613.12/x
  3. Step 3: Cross multiply
    2,910.40x = 4,355.04 × 1,613.12
  4. Step 4: Simplify right side
    2,910.40x = 7,025,202.12
  5. Step 5: Solve for x
    x = 7,025,202.12/2,910.40
  6. Step 6: Final answer
    x = 2,413.83

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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.