Home / 3,670.42-5,065.32-2,179.12

Finding the Fourth Proportional to 3,670.42, 5,065.32 and 2,179.12

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Solution

The fourth proportional to 3,670.42, 5,065.32 and 2,179.12 is: 3,007.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,670.42 : 5,065.32 = 2,179.12 : x
  2. Step 2: Convert to fraction form
    3,670.42/5,065.32 = 2,179.12/x
  3. Step 3: Cross multiply
    3,670.42x = 5,065.32 × 2,179.12
  4. Step 4: Simplify right side
    3,670.42x = 11,037,940.12
  5. Step 5: Solve for x
    x = 11,037,940.12/3,670.42
  6. Step 6: Final answer
    x = 3,007.27

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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.