Home / 7,759.08-11,642.94-3,145.32

Finding the Fourth Proportional to 7,759.08, 11,642.94 and 3,145.32

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Solution

The fourth proportional to 7,759.08, 11,642.94 and 3,145.32 is: 4,719.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,759.08 : 11,642.94 = 3,145.32 : x
  2. Step 2: Convert to fraction form
    7,759.08/11,642.94 = 3,145.32/x
  3. Step 3: Cross multiply
    7,759.08x = 11,642.94 × 3,145.32
  4. Step 4: Simplify right side
    7,759.08x = 36,620,772.04
  5. Step 5: Solve for x
    x = 36,620,772.04/7,759.08
  6. Step 6: Final answer
    x = 4,719.73

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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.