Home / 6,979.09-9,631.20-3,835.29

Finding the Fourth Proportional to 6,979.09, 9,631.20 and 3,835.29

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Solution

The fourth proportional to 6,979.09, 9,631.20 and 3,835.29 is: 5,292.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,979.09 : 9,631.20 = 3,835.29 : x
  2. Step 2: Convert to fraction form
    6,979.09/9,631.20 = 3,835.29/x
  3. Step 3: Cross multiply
    6,979.09x = 9,631.20 × 3,835.29
  4. Step 4: Simplify right side
    6,979.09x = 36,938,445.05
  5. Step 5: Solve for x
    x = 36,938,445.05/6,979.09
  6. Step 6: Final answer
    x = 5,292.73

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1.5x scale

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.