Home / 6,413.10-9,612.45-3,291.90

Finding the Fourth Proportional to 6,413.10, 9,612.45 and 3,291.90

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Solution

The fourth proportional to 6,413.10, 9,612.45 and 3,291.90 is: 4,934.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,413.10 : 9,612.45 = 3,291.90 : x
  2. Step 2: Convert to fraction form
    6,413.10/9,612.45 = 3,291.90/x
  3. Step 3: Cross multiply
    6,413.10x = 9,612.45 × 3,291.90
  4. Step 4: Simplify right side
    6,413.10x = 31,643,224.16
  5. Step 5: Solve for x
    x = 31,643,224.16/6,413.10
  6. Step 6: Final answer
    x = 4,934.15

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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.