Home / 7,119.54-10,680.97-2,439.60

Finding the Fourth Proportional to 7,119.54, 10,680.97 and 2,439.60

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Solution

The fourth proportional to 7,119.54, 10,680.97 and 2,439.60 is: 3,659.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,119.54 : 10,680.97 = 2,439.60 : x
  2. Step 2: Convert to fraction form
    7,119.54/10,680.97 = 2,439.60/x
  3. Step 3: Cross multiply
    7,119.54x = 10,680.97 × 2,439.60
  4. Step 4: Simplify right side
    7,119.54x = 26,057,294.41
  5. Step 5: Solve for x
    x = 26,057,294.41/7,119.54
  6. Step 6: Final answer
    x = 3,659.97

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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.