Home / 6,286.90-9,431.51-2,070.39

Finding the Fourth Proportional to 6,286.90, 9,431.51 and 2,070.39

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Solution

The fourth proportional to 6,286.90, 9,431.51 and 2,070.39 is: 3,105.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,286.90 : 9,431.51 = 2,070.39 : x
  2. Step 2: Convert to fraction form
    6,286.90/9,431.51 = 2,070.39/x
  3. Step 3: Cross multiply
    6,286.90x = 9,431.51 × 2,070.39
  4. Step 4: Simplify right side
    6,286.90x = 19,526,929.01
  5. Step 5: Solve for x
    x = 19,526,929.01/6,286.90
  6. Step 6: Final answer
    x = 3,105.97

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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.