Home / 6,620.88-9,134.48-4,105.04

Finding the Fourth Proportional to 6,620.88, 9,134.48 and 4,105.04

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Solution

The fourth proportional to 6,620.88, 9,134.48 and 4,105.04 is: 5,663.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,620.88 : 9,134.48 = 4,105.04 : x
  2. Step 2: Convert to fraction form
    6,620.88/9,134.48 = 4,105.04/x
  3. Step 3: Cross multiply
    6,620.88x = 9,134.48 × 4,105.04
  4. Step 4: Simplify right side
    6,620.88x = 37,497,405.78
  5. Step 5: Solve for x
    x = 37,497,405.78/6,620.88
  6. Step 6: Final answer
    x = 5,663.51

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.