Home / 3,786.91-5,225.99-2,085.62

Finding the Fourth Proportional to 3,786.91, 5,225.99 and 2,085.62

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Solution

The fourth proportional to 3,786.91, 5,225.99 and 2,085.62 is: 2,878.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,786.91 : 5,225.99 = 2,085.62 : x
  2. Step 2: Convert to fraction form
    3,786.91/5,225.99 = 2,085.62/x
  3. Step 3: Cross multiply
    3,786.91x = 5,225.99 × 2,085.62
  4. Step 4: Simplify right side
    3,786.91x = 10,899,420.12
  5. Step 5: Solve for x
    x = 10,899,420.12/3,786.91
  6. Step 6: Final answer
    x = 2,878.18

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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.