Home / 7,615.72-11,425.02-2,684.80

Finding the Fourth Proportional to 7,615.72, 11,425.02 and 2,684.80

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Solution

The fourth proportional to 7,615.72, 11,425.02 and 2,684.80 is: 4,027.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,615.72 : 11,425.02 = 2,684.80 : x
  2. Step 2: Convert to fraction form
    7,615.72/11,425.02 = 2,684.80/x
  3. Step 3: Cross multiply
    7,615.72x = 11,425.02 × 2,684.80
  4. Step 4: Simplify right side
    7,615.72x = 30,673,893.70
  5. Step 5: Solve for x
    x = 30,673,893.70/7,615.72
  6. Step 6: Final answer
    x = 4,027.71

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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.