Home / 7,720.11-11,571.66-3,558.94

Finding the Fourth Proportional to 7,720.11, 11,571.66 and 3,558.94

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Solution

The fourth proportional to 7,720.11, 11,571.66 and 3,558.94 is: 5,334.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,720.11 : 11,571.66 = 3,558.94 : x
  2. Step 2: Convert to fraction form
    7,720.11/11,571.66 = 3,558.94/x
  3. Step 3: Cross multiply
    7,720.11x = 11,571.66 × 3,558.94
  4. Step 4: Simplify right side
    7,720.11x = 41,182,814.71
  5. Step 5: Solve for x
    x = 41,182,814.71/7,720.11
  6. Step 6: Final answer
    x = 5,334.49

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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.