Home / 3,980.91-5,492.24-2,736.75

Finding the Fourth Proportional to 3,980.91, 5,492.24 and 2,736.75

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Solution

The fourth proportional to 3,980.91, 5,492.24 and 2,736.75 is: 3,775.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,980.91 : 5,492.24 = 2,736.75 : x
  2. Step 2: Convert to fraction form
    3,980.91/5,492.24 = 2,736.75/x
  3. Step 3: Cross multiply
    3,980.91x = 5,492.24 × 2,736.75
  4. Step 4: Simplify right side
    3,980.91x = 15,030,874.14
  5. Step 5: Solve for x
    x = 15,030,874.14/3,980.91
  6. Step 6: Final answer
    x = 3,775.74

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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.