Home / 6,413.68-9,618.90-3,291.94

Finding the Fourth Proportional to 6,413.68, 9,618.90 and 3,291.94

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Solution

The fourth proportional to 6,413.68, 9,618.90 and 3,291.94 is: 4,937.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,413.68 : 9,618.90 = 3,291.94 : x
  2. Step 2: Convert to fraction form
    6,413.68/9,618.90 = 3,291.94/x
  3. Step 3: Cross multiply
    6,413.68x = 9,618.90 × 3,291.94
  4. Step 4: Simplify right side
    6,413.68x = 31,664,841.67
  5. Step 5: Solve for x
    x = 31,664,841.67/6,413.68
  6. Step 6: Final answer
    x = 4,937.08

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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.