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Finding the Fourth Proportional to 5,571.56, 8,316.82 and 5,318.84

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Solution

The fourth proportional to 5,571.56, 8,316.82 and 5,318.84 is: 7,939.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,571.56 : 8,316.82 = 5,318.84 : x
  2. Step 2: Convert to fraction form
    5,571.56/8,316.82 = 5,318.84/x
  3. Step 3: Cross multiply
    5,571.56x = 8,316.82 × 5,318.84
  4. Step 4: Simplify right side
    5,571.56x = 44,235,834.89
  5. Step 5: Solve for x
    x = 44,235,834.89/5,571.56
  6. Step 6: Final answer
    x = 7,939.58

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.