Home / 5,908.05-8,156.51-3,921.30

Finding the Fourth Proportional to 5,908.05, 8,156.51 and 3,921.30

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Solution

The fourth proportional to 5,908.05, 8,156.51 and 3,921.30 is: 5,413.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,908.05 : 8,156.51 = 3,921.30 : x
  2. Step 2: Convert to fraction form
    5,908.05/8,156.51 = 3,921.30/x
  3. Step 3: Cross multiply
    5,908.05x = 8,156.51 × 3,921.30
  4. Step 4: Simplify right side
    5,908.05x = 31,984,122.66
  5. Step 5: Solve for x
    x = 31,984,122.66/5,908.05
  6. Step 6: Final answer
    x = 5,413.65

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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.