Home / 6,902.78-10,345.91-3,975.03

Finding the Fourth Proportional to 6,902.78, 10,345.91 and 3,975.03

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Solution

The fourth proportional to 6,902.78, 10,345.91 and 3,975.03 is: 5,957.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,902.78 : 10,345.91 = 3,975.03 : x
  2. Step 2: Convert to fraction form
    6,902.78/10,345.91 = 3,975.03/x
  3. Step 3: Cross multiply
    6,902.78x = 10,345.91 × 3,975.03
  4. Step 4: Simplify right side
    6,902.78x = 41,125,282.75
  5. Step 5: Solve for x
    x = 41,125,282.75/6,902.78
  6. Step 6: Final answer
    x = 5,957.79

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.