Home / 7,742.70-11,612.34-2,195.92

Finding the Fourth Proportional to 7,742.70, 11,612.34 and 2,195.92

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Solution

The fourth proportional to 7,742.70, 11,612.34 and 2,195.92 is: 3,293.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,742.70 : 11,612.34 = 2,195.92 : x
  2. Step 2: Convert to fraction form
    7,742.70/11,612.34 = 2,195.92/x
  3. Step 3: Cross multiply
    7,742.70x = 11,612.34 × 2,195.92
  4. Step 4: Simplify right side
    7,742.70x = 25,499,769.65
  5. Step 5: Solve for x
    x = 25,499,769.65/7,742.70
  6. Step 6: Final answer
    x = 3,293.40

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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.