Home / 6,620.88-9,136.65-3,636.70

Finding the Fourth Proportional to 6,620.88, 9,136.65 and 3,636.70

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Solution

The fourth proportional to 6,620.88, 9,136.65 and 3,636.70 is: 5,018.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,620.88 : 9,136.65 = 3,636.70 : x
  2. Step 2: Convert to fraction form
    6,620.88/9,136.65 = 3,636.70/x
  3. Step 3: Cross multiply
    6,620.88x = 9,136.65 × 3,636.70
  4. Step 4: Simplify right side
    6,620.88x = 33,227,255.06
  5. Step 5: Solve for x
    x = 33,227,255.06/6,620.88
  6. Step 6: Final answer
    x = 5,018.56

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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.