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Finding the Fourth Proportional to 7,740.99, 11,606.63 and 3,525.55

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Solution

The fourth proportional to 7,740.99, 11,606.63 and 3,525.55 is: 5,286.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,740.99 : 11,606.63 = 3,525.55 : x
  2. Step 2: Convert to fraction form
    7,740.99/11,606.63 = 3,525.55/x
  3. Step 3: Cross multiply
    7,740.99x = 11,606.63 × 3,525.55
  4. Step 4: Simplify right side
    7,740.99x = 40,919,755.27
  5. Step 5: Solve for x
    x = 40,919,755.27/7,740.99
  6. Step 6: Final answer
    x = 5,286.11

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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.