Home / 6,389.48-9,589.82-3,105

Finding the Fourth Proportional to 6,389.48, 9,589.82 and 3,105

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Solution

The fourth proportional to 6,389.48, 9,589.82 and 3,105 is: 4,660.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,389.48 : 9,589.82 = 3,105 : x
  2. Step 2: Convert to fraction form
    6,389.48/9,589.82 = 3,105/x
  3. Step 3: Cross multiply
    6,389.48x = 9,589.82 × 3,105
  4. Step 4: Simplify right side
    6,389.48x = 29,776,391.10
  5. Step 5: Solve for x
    x = 29,776,391.10/6,389.48
  6. Step 6: Final answer
    x = 4,660.22

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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.