Home / 3,186.00-4,775.41-1,621.61

Finding the Fourth Proportional to 3,186.00, 4,775.41 and 1,621.61

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Solution

The fourth proportional to 3,186.00, 4,775.41 and 1,621.61 is: 2,430.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,186.00 : 4,775.41 = 1,621.61 : x
  2. Step 2: Convert to fraction form
    3,186.00/4,775.41 = 1,621.61/x
  3. Step 3: Cross multiply
    3,186.00x = 4,775.41 × 1,621.61
  4. Step 4: Simplify right side
    3,186.00x = 7,743,832.83
  5. Step 5: Solve for x
    x = 7,743,832.83/3,186.00
  6. Step 6: Final answer
    x = 2,430.58

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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.