Home / 7,740.76-11,610.24-2,194.60

Finding the Fourth Proportional to 7,740.76, 11,610.24 and 2,194.60

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Solution

The fourth proportional to 7,740.76, 11,610.24 and 2,194.60 is: 3,291.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,740.76 : 11,610.24 = 2,194.60 : x
  2. Step 2: Convert to fraction form
    7,740.76/11,610.24 = 2,194.60/x
  3. Step 3: Cross multiply
    7,740.76x = 11,610.24 × 2,194.60
  4. Step 4: Simplify right side
    7,740.76x = 25,479,832.70
  5. Step 5: Solve for x
    x = 25,479,832.70/7,740.76
  6. Step 6: Final answer
    x = 3,291.64

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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.