Home / 6,986.16-9,640.98-3,799.49

Finding the Fourth Proportional to 6,986.16, 9,640.98 and 3,799.49

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Solution

The fourth proportional to 6,986.16, 9,640.98 and 3,799.49 is: 5,243.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,986.16 : 9,640.98 = 3,799.49 : x
  2. Step 2: Convert to fraction form
    6,986.16/9,640.98 = 3,799.49/x
  3. Step 3: Cross multiply
    6,986.16x = 9,640.98 × 3,799.49
  4. Step 4: Simplify right side
    6,986.16x = 36,630,758.90
  5. Step 5: Solve for x
    x = 36,630,758.90/6,986.16
  6. Step 6: Final answer
    x = 5,243.33

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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.