Home / 7,770.92-11,656.06-3,090.74

Finding the Fourth Proportional to 7,770.92, 11,656.06 and 3,090.74

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Solution

The fourth proportional to 7,770.92, 11,656.06 and 3,090.74 is: 4,635.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,770.92 : 11,656.06 = 3,090.74 : x
  2. Step 2: Convert to fraction form
    7,770.92/11,656.06 = 3,090.74/x
  3. Step 3: Cross multiply
    7,770.92x = 11,656.06 × 3,090.74
  4. Step 4: Simplify right side
    7,770.92x = 36,025,850.88
  5. Step 5: Solve for x
    x = 36,025,850.88/7,770.92
  6. Step 6: Final answer
    x = 4,635.98

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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.