Home / 3,176.37-4,387.07-2,112.29

Finding the Fourth Proportional to 3,176.37, 4,387.07 and 2,112.29

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Solution

The fourth proportional to 3,176.37, 4,387.07 and 2,112.29 is: 2,917.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,176.37 : 4,387.07 = 2,112.29 : x
  2. Step 2: Convert to fraction form
    3,176.37/4,387.07 = 2,112.29/x
  3. Step 3: Cross multiply
    3,176.37x = 4,387.07 × 2,112.29
  4. Step 4: Simplify right side
    3,176.37x = 9,266,773.37
  5. Step 5: Solve for x
    x = 9,266,773.37/3,176.37
  6. Step 6: Final answer
    x = 2,917.41

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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.