Home / 6,616.65-9,131.30-3,632.78

Finding the Fourth Proportional to 6,616.65, 9,131.30 and 3,632.78

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Solution

The fourth proportional to 6,616.65, 9,131.30 and 3,632.78 is: 5,013.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,616.65 : 9,131.30 = 3,632.78 : x
  2. Step 2: Convert to fraction form
    6,616.65/9,131.30 = 3,632.78/x
  3. Step 3: Cross multiply
    6,616.65x = 9,131.30 × 3,632.78
  4. Step 4: Simplify right side
    6,616.65x = 33,172,022.30
  5. Step 5: Solve for x
    x = 33,172,022.30/6,616.65
  6. Step 6: Final answer
    x = 5,013.41

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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.