Home / 7,404.38-11,108.64-4,119.78

Finding the Fourth Proportional to 7,404.38, 11,108.64 and 4,119.78

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Solution

The fourth proportional to 7,404.38, 11,108.64 and 4,119.78 is: 6,180.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,404.38 : 11,108.64 = 4,119.78 : x
  2. Step 2: Convert to fraction form
    7,404.38/11,108.64 = 4,119.78/x
  3. Step 3: Cross multiply
    7,404.38x = 11,108.64 × 4,119.78
  4. Step 4: Simplify right side
    7,404.38x = 45,765,152.90
  5. Step 5: Solve for x
    x = 45,765,152.90/7,404.38
  6. Step 6: Final answer
    x = 6,180.82

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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.