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Finding the Fourth Proportional to 5,114.99, 7,672.64 and 1,994.87

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Solution

The fourth proportional to 5,114.99, 7,672.64 and 1,994.87 is: 2,992.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,114.99 : 7,672.64 = 1,994.87 : x
  2. Step 2: Convert to fraction form
    5,114.99/7,672.64 = 1,994.87/x
  3. Step 3: Cross multiply
    5,114.99x = 7,672.64 × 1,994.87
  4. Step 4: Simplify right side
    5,114.99x = 15,305,919.36
  5. Step 5: Solve for x
    x = 15,305,919.36/5,114.99
  6. Step 6: Final answer
    x = 2,992.37

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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.