Home / 5,816.32-8,721.72-2,115.94

Finding the Fourth Proportional to 5,816.32, 8,721.72 and 2,115.94

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Solution

The fourth proportional to 5,816.32, 8,721.72 and 2,115.94 is: 3,172.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,816.32 : 8,721.72 = 2,115.94 : x
  2. Step 2: Convert to fraction form
    5,816.32/8,721.72 = 2,115.94/x
  3. Step 3: Cross multiply
    5,816.32x = 8,721.72 × 2,115.94
  4. Step 4: Simplify right side
    5,816.32x = 18,454,636.22
  5. Step 5: Solve for x
    x = 18,454,636.22/5,816.32
  6. Step 6: Final answer
    x = 3,172.91

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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.