Home / 3,108.72-4,663.62-1,809.84

Finding the Fourth Proportional to 3,108.72, 4,663.62 and 1,809.84

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Solution

The fourth proportional to 3,108.72, 4,663.62 and 1,809.84 is: 2,715.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,108.72 : 4,663.62 = 1,809.84 : x
  2. Step 2: Convert to fraction form
    3,108.72/4,663.62 = 1,809.84/x
  3. Step 3: Cross multiply
    3,108.72x = 4,663.62 × 1,809.84
  4. Step 4: Simplify right side
    3,108.72x = 8,440,406.02
  5. Step 5: Solve for x
    x = 8,440,406.02/3,108.72
  6. Step 6: Final answer
    x = 2,715.07

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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.