Home / 6,345.91-9,519.08-2,185.88

Finding the Fourth Proportional to 6,345.91, 9,519.08 and 2,185.88

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Solution

The fourth proportional to 6,345.91, 9,519.08 and 2,185.88 is: 3,278.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,345.91 : 9,519.08 = 2,185.88 : x
  2. Step 2: Convert to fraction form
    6,345.91/9,519.08 = 2,185.88/x
  3. Step 3: Cross multiply
    6,345.91x = 9,519.08 × 2,185.88
  4. Step 4: Simplify right side
    6,345.91x = 20,807,555.66
  5. Step 5: Solve for x
    x = 20,807,555.66/6,345.91
  6. Step 6: Final answer
    x = 3,278.89

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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.