Home / 7,580.21-11,371.53-3,198.31

Finding the Fourth Proportional to 7,580.21, 11,371.53 and 3,198.31

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Solution

The fourth proportional to 7,580.21, 11,371.53 and 3,198.31 is: 4,797.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,580.21 : 11,371.53 = 3,198.31 : x
  2. Step 2: Convert to fraction form
    7,580.21/11,371.53 = 3,198.31/x
  3. Step 3: Cross multiply
    7,580.21x = 11,371.53 × 3,198.31
  4. Step 4: Simplify right side
    7,580.21x = 36,369,659.01
  5. Step 5: Solve for x
    x = 36,369,659.01/7,580.21
  6. Step 6: Final answer
    x = 4,797.98

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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.