Home / 3,923.04-5,413.50-2,154.74

Finding the Fourth Proportional to 3,923.04, 5,413.50 and 2,154.74

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Solution

The fourth proportional to 3,923.04, 5,413.50 and 2,154.74 is: 2,973.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,923.04 : 5,413.50 = 2,154.74 : x
  2. Step 2: Convert to fraction form
    3,923.04/5,413.50 = 2,154.74/x
  3. Step 3: Cross multiply
    3,923.04x = 5,413.50 × 2,154.74
  4. Step 4: Simplify right side
    3,923.04x = 11,664,684.99
  5. Step 5: Solve for x
    x = 11,664,684.99/3,923.04
  6. Step 6: Final answer
    x = 2,973.38

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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.