Home / 4,911.94-7,367.96-1,989.56

Finding the Fourth Proportional to 4,911.94, 7,367.96 and 1,989.56

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Solution

The fourth proportional to 4,911.94, 7,367.96 and 1,989.56 is: 2,984.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,911.94 : 7,367.96 = 1,989.56 : x
  2. Step 2: Convert to fraction form
    4,911.94/7,367.96 = 1,989.56/x
  3. Step 3: Cross multiply
    4,911.94x = 7,367.96 × 1,989.56
  4. Step 4: Simplify right side
    4,911.94x = 14,659,021.89
  5. Step 5: Solve for x
    x = 14,659,021.89/4,911.94
  6. Step 6: Final answer
    x = 2,984.36

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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.