Home / 7,086.30-9,778.68-4,102.26

Finding the Fourth Proportional to 7,086.30, 9,778.68 and 4,102.26

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Solution

The fourth proportional to 7,086.30, 9,778.68 and 4,102.26 is: 5,660.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,086.30 : 9,778.68 = 4,102.26 : x
  2. Step 2: Convert to fraction form
    7,086.30/9,778.68 = 4,102.26/x
  3. Step 3: Cross multiply
    7,086.30x = 9,778.68 × 4,102.26
  4. Step 4: Simplify right side
    7,086.30x = 40,114,687.82
  5. Step 5: Solve for x
    x = 40,114,687.82/7,086.30
  6. Step 6: Final answer
    x = 5,660.88

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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.