Home / 6,979.50-9,631.98-3,835.62

Finding the Fourth Proportional to 6,979.50, 9,631.98 and 3,835.62

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Solution

The fourth proportional to 6,979.50, 9,631.98 and 3,835.62 is: 5,293.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,979.50 : 9,631.98 = 3,835.62 : x
  2. Step 2: Convert to fraction form
    6,979.50/9,631.98 = 3,835.62/x
  3. Step 3: Cross multiply
    6,979.50x = 9,631.98 × 3,835.62
  4. Step 4: Simplify right side
    6,979.50x = 36,944,615.13
  5. Step 5: Solve for x
    x = 36,944,615.13/6,979.50
  6. Step 6: Final answer
    x = 5,293.30

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.