Home / 3,924.40-5,413.68-2,663.92

Finding the Fourth Proportional to 3,924.40, 5,413.68 and 2,663.92

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Solution

The fourth proportional to 3,924.40, 5,413.68 and 2,663.92 is: 3,674.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,924.40 : 5,413.68 = 2,663.92 : x
  2. Step 2: Convert to fraction form
    3,924.40/5,413.68 = 2,663.92/x
  3. Step 3: Cross multiply
    3,924.40x = 5,413.68 × 2,663.92
  4. Step 4: Simplify right side
    3,924.40x = 14,421,610.43
  5. Step 5: Solve for x
    x = 14,421,610.43/3,924.40
  6. Step 6: Final answer
    x = 3,674.86

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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.