Home / 7,935.21-11,902.55-3,777.21

Finding the Fourth Proportional to 7,935.21, 11,902.55 and 3,777.21

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Solution

The fourth proportional to 7,935.21, 11,902.55 and 3,777.21 is: 5,665.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,935.21 : 11,902.55 = 3,777.21 : x
  2. Step 2: Convert to fraction form
    7,935.21/11,902.55 = 3,777.21/x
  3. Step 3: Cross multiply
    7,935.21x = 11,902.55 × 3,777.21
  4. Step 4: Simplify right side
    7,935.21x = 44,958,412.00
  5. Step 5: Solve for x
    x = 44,958,412.00/7,935.21
  6. Step 6: Final answer
    x = 5,665.69

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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.