Home / 3,873.78-5,345.93-2,195.14

Finding the Fourth Proportional to 3,873.78, 5,345.93 and 2,195.14

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Solution

The fourth proportional to 3,873.78, 5,345.93 and 2,195.14 is: 3,029.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,873.78 : 5,345.93 = 2,195.14 : x
  2. Step 2: Convert to fraction form
    3,873.78/5,345.93 = 2,195.14/x
  3. Step 3: Cross multiply
    3,873.78x = 5,345.93 × 2,195.14
  4. Step 4: Simplify right side
    3,873.78x = 11,735,081.96
  5. Step 5: Solve for x
    x = 11,735,081.96/3,873.78
  6. Step 6: Final answer
    x = 3,029.36

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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.