Home / 3,727.91-5,145.23-2,215.80

Finding the Fourth Proportional to 3,727.91, 5,145.23 and 2,215.80

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Solution

The fourth proportional to 3,727.91, 5,145.23 and 2,215.80 is: 3,058.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,727.91 : 5,145.23 = 2,215.80 : x
  2. Step 2: Convert to fraction form
    3,727.91/5,145.23 = 2,215.80/x
  3. Step 3: Cross multiply
    3,727.91x = 5,145.23 × 2,215.80
  4. Step 4: Simplify right side
    3,727.91x = 11,400,800.63
  5. Step 5: Solve for x
    x = 11,400,800.63/3,727.91
  6. Step 6: Final answer
    x = 3,058.23

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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.