Home / 3,921.16-5,413.73-2,430.66

Finding the Fourth Proportional to 3,921.16, 5,413.73 and 2,430.66

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Solution

The fourth proportional to 3,921.16, 5,413.73 and 2,430.66 is: 3,355.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,921.16 : 5,413.73 = 2,430.66 : x
  2. Step 2: Convert to fraction form
    3,921.16/5,413.73 = 2,430.66/x
  3. Step 3: Cross multiply
    3,921.16x = 5,413.73 × 2,430.66
  4. Step 4: Simplify right side
    3,921.16x = 13,158,943.04
  5. Step 5: Solve for x
    x = 13,158,943.04/3,921.16
  6. Step 6: Final answer
    x = 3,355.88

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Why These Related Problems?

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