Home / 2,120.08-3,181.08-966.16

Finding the Fourth Proportional to 2,120.08, 3,181.08 and 966.16

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Solution

The fourth proportional to 2,120.08, 3,181.08 and 966.16 is: 1,449.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,120.08 : 3,181.08 = 966.16 : x
  2. Step 2: Convert to fraction form
    2,120.08/3,181.08 = 966.16/x
  3. Step 3: Cross multiply
    2,120.08x = 3,181.08 × 966.16
  4. Step 4: Simplify right side
    2,120.08x = 3,073,432.25
  5. Step 5: Solve for x
    x = 3,073,432.25/2,120.08
  6. Step 6: Final answer
    x = 1,449.68

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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.