Home / 3,922.14-5,413.32-2,430.72

Finding the Fourth Proportional to 3,922.14, 5,413.32 and 2,430.72

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Solution

The fourth proportional to 3,922.14, 5,413.32 and 2,430.72 is: 3,354.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,922.14 : 5,413.32 = 2,430.72 : x
  2. Step 2: Convert to fraction form
    3,922.14/5,413.32 = 2,430.72/x
  3. Step 3: Cross multiply
    3,922.14x = 5,413.32 × 2,430.72
  4. Step 4: Simplify right side
    3,922.14x = 13,158,265.19
  5. Step 5: Solve for x
    x = 13,158,265.19/3,922.14
  6. Step 6: Final answer
    x = 3,354.87

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1.5x scale

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.