Home / 6,984.80-9,636.29-3,999.04

Finding the Fourth Proportional to 6,984.80, 9,636.29 and 3,999.04

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Solution

The fourth proportional to 6,984.80, 9,636.29 and 3,999.04 is: 5,517.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,984.80 : 9,636.29 = 3,999.04 : x
  2. Step 2: Convert to fraction form
    6,984.80/9,636.29 = 3,999.04/x
  3. Step 3: Cross multiply
    6,984.80x = 9,636.29 × 3,999.04
  4. Step 4: Simplify right side
    6,984.80x = 38,535,860.98
  5. Step 5: Solve for x
    x = 38,535,860.98/6,984.80
  6. Step 6: Final answer
    x = 5,517.10

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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.