Home / 4,922.97-7,381.49-1,961.79

Finding the Fourth Proportional to 4,922.97, 7,381.49 and 1,961.79

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Solution

The fourth proportional to 4,922.97, 7,381.49 and 1,961.79 is: 2,941.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,922.97 : 7,381.49 = 1,961.79 : x
  2. Step 2: Convert to fraction form
    4,922.97/7,381.49 = 1,961.79/x
  3. Step 3: Cross multiply
    4,922.97x = 7,381.49 × 1,961.79
  4. Step 4: Simplify right side
    4,922.97x = 14,480,923.46
  5. Step 5: Solve for x
    x = 14,480,923.46/4,922.97
  6. Step 6: Final answer
    x = 2,941.50

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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.