Home / 7,917.20-11,875.96-2,722.96

Finding the Fourth Proportional to 7,917.20, 11,875.96 and 2,722.96

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Solution

The fourth proportional to 7,917.20, 11,875.96 and 2,722.96 is: 4,084.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,917.20 : 11,875.96 = 2,722.96 : x
  2. Step 2: Convert to fraction form
    7,917.20/11,875.96 = 2,722.96/x
  3. Step 3: Cross multiply
    7,917.20x = 11,875.96 × 2,722.96
  4. Step 4: Simplify right side
    7,917.20x = 32,337,764.04
  5. Step 5: Solve for x
    x = 32,337,764.04/7,917.20
  6. Step 6: Final answer
    x = 4,084.50

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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.