Home / 6,982.80-9,636.75-3,838.99

Finding the Fourth Proportional to 6,982.80, 9,636.75 and 3,838.99

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Solution

The fourth proportional to 6,982.80, 9,636.75 and 3,838.99 is: 5,298.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,982.80 : 9,636.75 = 3,838.99 : x
  2. Step 2: Convert to fraction form
    6,982.80/9,636.75 = 3,838.99/x
  3. Step 3: Cross multiply
    6,982.80x = 9,636.75 × 3,838.99
  4. Step 4: Simplify right side
    6,982.80x = 36,995,386.88
  5. Step 5: Solve for x
    x = 36,995,386.88/6,982.80
  6. Step 6: Final answer
    x = 5,298.07

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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.