Home / 6,986.97-10,480.20-1,722.02

Finding the Fourth Proportional to 6,986.97, 10,480.20 and 1,722.02

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Solution

The fourth proportional to 6,986.97, 10,480.20 and 1,722.02 is: 2,582.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,986.97 : 10,480.20 = 1,722.02 : x
  2. Step 2: Convert to fraction form
    6,986.97/10,480.20 = 1,722.02/x
  3. Step 3: Cross multiply
    6,986.97x = 10,480.20 × 1,722.02
  4. Step 4: Simplify right side
    6,986.97x = 18,047,061.60
  5. Step 5: Solve for x
    x = 18,047,061.60/6,986.97
  6. Step 6: Final answer
    x = 2,582.96

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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.