Home / 3,187.08-4,775.49-2,090.61

Finding the Fourth Proportional to 3,187.08, 4,775.49 and 2,090.61

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Solution

The fourth proportional to 3,187.08, 4,775.49 and 2,090.61 is: 3,132.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,187.08 : 4,775.49 = 2,090.61 : x
  2. Step 2: Convert to fraction form
    3,187.08/4,775.49 = 2,090.61/x
  3. Step 3: Cross multiply
    3,187.08x = 4,775.49 × 2,090.61
  4. Step 4: Simplify right side
    3,187.08x = 9,983,687.15
  5. Step 5: Solve for x
    x = 9,983,687.15/3,187.08
  6. Step 6: Final answer
    x = 3,132.55

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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.