Home / 7,615.15-11,422.78-2,684.88

Finding the Fourth Proportional to 7,615.15, 11,422.78 and 2,684.88

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Solution

The fourth proportional to 7,615.15, 11,422.78 and 2,684.88 is: 4,027.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,615.15 : 11,422.78 = 2,684.88 : x
  2. Step 2: Convert to fraction form
    7,615.15/11,422.78 = 2,684.88/x
  3. Step 3: Cross multiply
    7,615.15x = 11,422.78 × 2,684.88
  4. Step 4: Simplify right side
    7,615.15x = 30,668,793.57
  5. Step 5: Solve for x
    x = 30,668,793.57/7,615.15
  6. Step 6: Final answer
    x = 4,027.34

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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.