Home / 7,072.25-9,761.46-4,089.81

Finding the Fourth Proportional to 7,072.25, 9,761.46 and 4,089.81

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Solution

The fourth proportional to 7,072.25, 9,761.46 and 4,089.81 is: 5,644.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,072.25 : 9,761.46 = 4,089.81 : x
  2. Step 2: Convert to fraction form
    7,072.25/9,761.46 = 4,089.81/x
  3. Step 3: Cross multiply
    7,072.25x = 9,761.46 × 4,089.81
  4. Step 4: Simplify right side
    7,072.25x = 39,922,516.72
  5. Step 5: Solve for x
    x = 39,922,516.72/7,072.25
  6. Step 6: Final answer
    x = 5,644.95

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.