Home / 3,873.80-5,345.76-2,195.24

Finding the Fourth Proportional to 3,873.80, 5,345.76 and 2,195.24

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Solution

The fourth proportional to 3,873.80, 5,345.76 and 2,195.24 is: 3,029.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,873.80 : 5,345.76 = 2,195.24 : x
  2. Step 2: Convert to fraction form
    3,873.80/5,345.76 = 2,195.24/x
  3. Step 3: Cross multiply
    3,873.80x = 5,345.76 × 2,195.24
  4. Step 4: Simplify right side
    3,873.80x = 11,735,226.18
  5. Step 5: Solve for x
    x = 11,735,226.18/3,873.80
  6. Step 6: Final answer
    x = 3,029.38

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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.