Home / 7,351.78-10,145.43-4,207.96

Finding the Fourth Proportional to 7,351.78, 10,145.43 and 4,207.96

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Solution

The fourth proportional to 7,351.78, 10,145.43 and 4,207.96 is: 5,806.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,351.78 : 10,145.43 = 4,207.96 : x
  2. Step 2: Convert to fraction form
    7,351.78/10,145.43 = 4,207.96/x
  3. Step 3: Cross multiply
    7,351.78x = 10,145.43 × 4,207.96
  4. Step 4: Simplify right side
    7,351.78x = 42,691,563.62
  5. Step 5: Solve for x
    x = 42,691,563.62/7,351.78
  6. Step 6: Final answer
    x = 5,806.97

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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.