Home / 7,115.07-10,675.68-2,731.51

Finding the Fourth Proportional to 7,115.07, 10,675.68 and 2,731.51

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Solution

The fourth proportional to 7,115.07, 10,675.68 and 2,731.51 is: 4,098.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,115.07 : 10,675.68 = 2,731.51 : x
  2. Step 2: Convert to fraction form
    7,115.07/10,675.68 = 2,731.51/x
  3. Step 3: Cross multiply
    7,115.07x = 10,675.68 × 2,731.51
  4. Step 4: Simplify right side
    7,115.07x = 29,160,699.99
  5. Step 5: Solve for x
    x = 29,160,699.99/7,115.07
  6. Step 6: Final answer
    x = 4,098.44

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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.