Home / 7,819.18-11,728.83-2,272.90

Finding the Fourth Proportional to 7,819.18, 11,728.83 and 2,272.90

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Solution

The fourth proportional to 7,819.18, 11,728.83 and 2,272.90 is: 3,409.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,819.18 : 11,728.83 = 2,272.90 : x
  2. Step 2: Convert to fraction form
    7,819.18/11,728.83 = 2,272.90/x
  3. Step 3: Cross multiply
    7,819.18x = 11,728.83 × 2,272.90
  4. Step 4: Simplify right side
    7,819.18x = 26,658,457.71
  5. Step 5: Solve for x
    x = 26,658,457.71/7,819.18
  6. Step 6: Final answer
    x = 3,409.37

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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.