Home / 7,210.83-10,815.84-2,531.06

Finding the Fourth Proportional to 7,210.83, 10,815.84 and 2,531.06

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Solution

The fourth proportional to 7,210.83, 10,815.84 and 2,531.06 is: 3,796.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,210.83 : 10,815.84 = 2,531.06 : x
  2. Step 2: Convert to fraction form
    7,210.83/10,815.84 = 2,531.06/x
  3. Step 3: Cross multiply
    7,210.83x = 10,815.84 × 2,531.06
  4. Step 4: Simplify right side
    7,210.83x = 27,375,485.91
  5. Step 5: Solve for x
    x = 27,375,485.91/7,210.83
  6. Step 6: Final answer
    x = 3,796.44

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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.