Home / 6,519.38-9,780.08-2,135.84

Finding the Fourth Proportional to 6,519.38, 9,780.08 and 2,135.84

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Solution

The fourth proportional to 6,519.38, 9,780.08 and 2,135.84 is: 3,204.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,519.38 : 9,780.08 = 2,135.84 : x
  2. Step 2: Convert to fraction form
    6,519.38/9,780.08 = 2,135.84/x
  3. Step 3: Cross multiply
    6,519.38x = 9,780.08 × 2,135.84
  4. Step 4: Simplify right side
    6,519.38x = 20,888,686.07
  5. Step 5: Solve for x
    x = 20,888,686.07/6,519.38
  6. Step 6: Final answer
    x = 3,204.09

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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.