Home / 2,119.08-3,179.58-965.16

Finding the Fourth Proportional to 2,119.08, 3,179.58 and 965.16

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Solution

The fourth proportional to 2,119.08, 3,179.58 and 965.16 is: 1,448.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,119.08 : 3,179.58 = 965.16 : x
  2. Step 2: Convert to fraction form
    2,119.08/3,179.58 = 965.16/x
  3. Step 3: Cross multiply
    2,119.08x = 3,179.58 × 965.16
  4. Step 4: Simplify right side
    2,119.08x = 3,068,803.43
  5. Step 5: Solve for x
    x = 3,068,803.43/2,119.08
  6. Step 6: Final answer
    x = 1,448.18

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.