Home / 6,198.21-9,288.89-3,420.75

Finding the Fourth Proportional to 6,198.21, 9,288.89 and 3,420.75

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Solution

The fourth proportional to 6,198.21, 9,288.89 and 3,420.75 is: 5,126.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,198.21 : 9,288.89 = 3,420.75 : x
  2. Step 2: Convert to fraction form
    6,198.21/9,288.89 = 3,420.75/x
  3. Step 3: Cross multiply
    6,198.21x = 9,288.89 × 3,420.75
  4. Step 4: Simplify right side
    6,198.21x = 31,774,953.36
  5. Step 5: Solve for x
    x = 31,774,953.36/6,198.21
  6. Step 6: Final answer
    x = 5,126.47

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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.