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Finding the Fourth Proportional to 7,908.08, 10,912.37 and 4,371.08

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Solution

The fourth proportional to 7,908.08, 10,912.37 and 4,371.08 is: 6,031.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,908.08 : 10,912.37 = 4,371.08 : x
  2. Step 2: Convert to fraction form
    7,908.08/10,912.37 = 4,371.08/x
  3. Step 3: Cross multiply
    7,908.08x = 10,912.37 × 4,371.08
  4. Step 4: Simplify right side
    7,908.08x = 47,698,765.84
  5. Step 5: Solve for x
    x = 47,698,765.84/7,908.08
  6. Step 6: Final answer
    x = 6,031.65

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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.