Home / 4,757.86-7,138.48-2,125.12

Finding the Fourth Proportional to 4,757.86, 7,138.48 and 2,125.12

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Solution

The fourth proportional to 4,757.86, 7,138.48 and 2,125.12 is: 3,188.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,757.86 : 7,138.48 = 2,125.12 : x
  2. Step 2: Convert to fraction form
    4,757.86/7,138.48 = 2,125.12/x
  3. Step 3: Cross multiply
    4,757.86x = 7,138.48 × 2,125.12
  4. Step 4: Simplify right side
    4,757.86x = 15,170,126.62
  5. Step 5: Solve for x
    x = 15,170,126.62/4,757.86
  6. Step 6: Final answer
    x = 3,188.43

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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.