Home / 4,759.12-7,138.84-4,218.04

Finding the Fourth Proportional to 4,759.12, 7,138.84 and 4,218.04

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Solution

The fourth proportional to 4,759.12, 7,138.84 and 4,218.04 is: 6,327.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,759.12 : 7,138.84 = 4,218.04 : x
  2. Step 2: Convert to fraction form
    4,759.12/7,138.84 = 4,218.04/x
  3. Step 3: Cross multiply
    4,759.12x = 7,138.84 × 4,218.04
  4. Step 4: Simplify right side
    4,759.12x = 30,111,912.67
  5. Step 5: Solve for x
    x = 30,111,912.67/4,759.12
  6. Step 6: Final answer
    x = 6,327.20

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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.