Home / 6,980.70-9,633.30-3,997.06

Finding the Fourth Proportional to 6,980.70, 9,633.30 and 3,997.06

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Solution

The fourth proportional to 6,980.70, 9,633.30 and 3,997.06 is: 5,515.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,980.70 : 9,633.30 = 3,997.06 : x
  2. Step 2: Convert to fraction form
    6,980.70/9,633.30 = 3,997.06/x
  3. Step 3: Cross multiply
    6,980.70x = 9,633.30 × 3,997.06
  4. Step 4: Simplify right side
    6,980.70x = 38,504,878.10
  5. Step 5: Solve for x
    x = 38,504,878.10/6,980.70
  6. Step 6: Final answer
    x = 5,515.91

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.