Home / 7,571.40-11,358.72-3,190.92

Finding the Fourth Proportional to 7,571.40, 11,358.72 and 3,190.92

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Solution

The fourth proportional to 7,571.40, 11,358.72 and 3,190.92 is: 4,787.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,571.40 : 11,358.72 = 3,190.92 : x
  2. Step 2: Convert to fraction form
    7,571.40/11,358.72 = 3,190.92/x
  3. Step 3: Cross multiply
    7,571.40x = 11,358.72 × 3,190.92
  4. Step 4: Simplify right side
    7,571.40x = 36,244,766.82
  5. Step 5: Solve for x
    x = 36,244,766.82/7,571.40
  6. Step 6: Final answer
    x = 4,787.06

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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.