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Finding the Fourth Proportional to 7,119.05, 10,679.11 and 1,924.88

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Solution

The fourth proportional to 7,119.05, 10,679.11 and 1,924.88 is: 2,887.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,119.05 : 10,679.11 = 1,924.88 : x
  2. Step 2: Convert to fraction form
    7,119.05/10,679.11 = 1,924.88/x
  3. Step 3: Cross multiply
    7,119.05x = 10,679.11 × 1,924.88
  4. Step 4: Simplify right side
    7,119.05x = 20,555,947.05
  5. Step 5: Solve for x
    x = 20,555,947.05/7,119.05
  6. Step 6: Final answer
    x = 2,887.46

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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.