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Finding the Fourth Proportional to 7,203.63, 10,806.26 and 3,921.51

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Solution

The fourth proportional to 7,203.63, 10,806.26 and 3,921.51 is: 5,882.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,203.63 : 10,806.26 = 3,921.51 : x
  2. Step 2: Convert to fraction form
    7,203.63/10,806.26 = 3,921.51/x
  3. Step 3: Cross multiply
    7,203.63x = 10,806.26 × 3,921.51
  4. Step 4: Simplify right side
    7,203.63x = 42,376,837.05
  5. Step 5: Solve for x
    x = 42,376,837.05/7,203.63
  6. Step 6: Final answer
    x = 5,882.71

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1.5x scale

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.