Home / 7,819.73-11,728.35-2,554.70

Finding the Fourth Proportional to 7,819.73, 11,728.35 and 2,554.70

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Solution

The fourth proportional to 7,819.73, 11,728.35 and 2,554.70 is: 3,831.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,819.73 : 11,728.35 = 2,554.70 : x
  2. Step 2: Convert to fraction form
    7,819.73/11,728.35 = 2,554.70/x
  3. Step 3: Cross multiply
    7,819.73x = 11,728.35 × 2,554.70
  4. Step 4: Simplify right side
    7,819.73x = 29,962,357.10
  5. Step 5: Solve for x
    x = 29,962,357.10/7,819.73
  6. Step 6: Final answer
    x = 3,831.64

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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.