Home / 7,764.20-11,646.40-2,217.54

Finding the Fourth Proportional to 7,764.20, 11,646.40 and 2,217.54

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Solution

The fourth proportional to 7,764.20, 11,646.40 and 2,217.54 is: 3,326.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,764.20 : 11,646.40 = 2,217.54 : x
  2. Step 2: Convert to fraction form
    7,764.20/11,646.40 = 2,217.54/x
  3. Step 3: Cross multiply
    7,764.20x = 11,646.40 × 2,217.54
  4. Step 4: Simplify right side
    7,764.20x = 25,826,357.86
  5. Step 5: Solve for x
    x = 25,826,357.86/7,764.20
  6. Step 6: Final answer
    x = 3,326.34

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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.