Home / 3,873.77-5,345.85-2,195.13

Finding the Fourth Proportional to 3,873.77, 5,345.85 and 2,195.13

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Solution

The fourth proportional to 3,873.77, 5,345.85 and 2,195.13 is: 3,029.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,873.77 : 5,345.85 = 2,195.13 : x
  2. Step 2: Convert to fraction form
    3,873.77/5,345.85 = 2,195.13/x
  3. Step 3: Cross multiply
    3,873.77x = 5,345.85 × 2,195.13
  4. Step 4: Simplify right side
    3,873.77x = 11,734,835.71
  5. Step 5: Solve for x
    x = 11,734,835.71/3,873.77
  6. Step 6: Final answer
    x = 3,029.31

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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.