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Finding the Fourth Proportional to 7,572.91, 11,361.20 and 2,378.79

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Solution

The fourth proportional to 7,572.91, 11,361.20 and 2,378.79 is: 3,568.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,572.91 : 11,361.20 = 2,378.79 : x
  2. Step 2: Convert to fraction form
    7,572.91/11,361.20 = 2,378.79/x
  3. Step 3: Cross multiply
    7,572.91x = 11,361.20 × 2,378.79
  4. Step 4: Simplify right side
    7,572.91x = 27,025,908.95
  5. Step 5: Solve for x
    x = 27,025,908.95/7,572.91
  6. Step 6: Final answer
    x = 3,568.76

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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.