Home / 7,931.44-11,895.54-2,738.80

Finding the Fourth Proportional to 7,931.44, 11,895.54 and 2,738.80

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Solution

The fourth proportional to 7,931.44, 11,895.54 and 2,738.80 is: 4,107.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,931.44 : 11,895.54 = 2,738.80 : x
  2. Step 2: Convert to fraction form
    7,931.44/11,895.54 = 2,738.80/x
  3. Step 3: Cross multiply
    7,931.44x = 11,895.54 × 2,738.80
  4. Step 4: Simplify right side
    7,931.44x = 32,579,504.95
  5. Step 5: Solve for x
    x = 32,579,504.95/7,931.44
  6. Step 6: Final answer
    x = 4,107.64

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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.