Home / 4,759.39-7,138.94-2,129.32

Finding the Fourth Proportional to 4,759.39, 7,138.94 and 2,129.32

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Solution

The fourth proportional to 4,759.39, 7,138.94 and 2,129.32 is: 3,193.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,759.39 : 7,138.94 = 2,129.32 : x
  2. Step 2: Convert to fraction form
    4,759.39/7,138.94 = 2,129.32/x
  3. Step 3: Cross multiply
    4,759.39x = 7,138.94 × 2,129.32
  4. Step 4: Simplify right side
    4,759.39x = 15,201,087.72
  5. Step 5: Solve for x
    x = 15,201,087.72/4,759.39
  6. Step 6: Final answer
    x = 3,193.92

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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.