Home / 6,490.20-9,735.66-2,108.04

Finding the Fourth Proportional to 6,490.20, 9,735.66 and 2,108.04

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Solution

The fourth proportional to 6,490.20, 9,735.66 and 2,108.04 is: 3,162.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,490.20 : 9,735.66 = 2,108.04 : x
  2. Step 2: Convert to fraction form
    6,490.20/9,735.66 = 2,108.04/x
  3. Step 3: Cross multiply
    6,490.20x = 9,735.66 × 2,108.04
  4. Step 4: Simplify right side
    6,490.20x = 20,523,160.71
  5. Step 5: Solve for x
    x = 20,523,160.71/6,490.20
  6. Step 6: Final answer
    x = 3,162.18

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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.