Home / 2,119.04-3,179.44-886.72

Finding the Fourth Proportional to 2,119.04, 3,179.44 and 886.72

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Solution

The fourth proportional to 2,119.04, 3,179.44 and 886.72 is: 1,330.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,119.04 : 3,179.44 = 886.72 : x
  2. Step 2: Convert to fraction form
    2,119.04/3,179.44 = 886.72/x
  3. Step 3: Cross multiply
    2,119.04x = 3,179.44 × 886.72
  4. Step 4: Simplify right side
    2,119.04x = 2,819,273.04
  5. Step 5: Solve for x
    x = 2,819,273.04/2,119.04
  6. Step 6: Final answer
    x = 1,330.45

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Similar ratio
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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.