Home / 3,873.70-5,345.84-2,195.08

Finding the Fourth Proportional to 3,873.70, 5,345.84 and 2,195.08

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Solution

The fourth proportional to 3,873.70, 5,345.84 and 2,195.08 is: 3,029.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,873.70 : 5,345.84 = 2,195.08 : x
  2. Step 2: Convert to fraction form
    3,873.70/5,345.84 = 2,195.08/x
  3. Step 3: Cross multiply
    3,873.70x = 5,345.84 × 2,195.08
  4. Step 4: Simplify right side
    3,873.70x = 11,734,546.47
  5. Step 5: Solve for x
    x = 11,734,546.47/3,873.70
  6. Step 6: Final answer
    x = 3,029.29

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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.