Home / 3,926.10-5,413.78-2,971.16

Finding the Fourth Proportional to 3,926.10, 5,413.78 and 2,971.16

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Solution

The fourth proportional to 3,926.10, 5,413.78 and 2,971.16 is: 4,096.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,926.10 : 5,413.78 = 2,971.16 : x
  2. Step 2: Convert to fraction form
    3,926.10/5,413.78 = 2,971.16/x
  3. Step 3: Cross multiply
    3,926.10x = 5,413.78 × 2,971.16
  4. Step 4: Simplify right side
    3,926.10x = 16,085,206.58
  5. Step 5: Solve for x
    x = 16,085,206.58/3,926.10
  6. Step 6: Final answer
    x = 4,096.99

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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.