Home / 5,108.16-7,647.30-3,880.38

Finding the Fourth Proportional to 5,108.16, 7,647.30 and 3,880.38

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Solution

The fourth proportional to 5,108.16, 7,647.30 and 3,880.38 is: 5,809.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,108.16 : 7,647.30 = 3,880.38 : x
  2. Step 2: Convert to fraction form
    5,108.16/7,647.30 = 3,880.38/x
  3. Step 3: Cross multiply
    5,108.16x = 7,647.30 × 3,880.38
  4. Step 4: Simplify right side
    5,108.16x = 29,674,429.97
  5. Step 5: Solve for x
    x = 29,674,429.97/5,108.16
  6. Step 6: Final answer
    x = 5,809.22

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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.