Home / 6,389.96-9,586.16-2,231.16

Finding the Fourth Proportional to 6,389.96, 9,586.16 and 2,231.16

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Solution

The fourth proportional to 6,389.96, 9,586.16 and 2,231.16 is: 3,347.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,389.96 : 9,586.16 = 2,231.16 : x
  2. Step 2: Convert to fraction form
    6,389.96/9,586.16 = 2,231.16/x
  3. Step 3: Cross multiply
    6,389.96x = 9,586.16 × 2,231.16
  4. Step 4: Simplify right side
    6,389.96x = 21,388,245.59
  5. Step 5: Solve for x
    x = 21,388,245.59/6,389.96
  6. Step 6: Final answer
    x = 3,347.17

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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.