Home / 6,636.26-9,158.80-3,985.12

Finding the Fourth Proportional to 6,636.26, 9,158.80 and 3,985.12

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Solution

The fourth proportional to 6,636.26, 9,158.80 and 3,985.12 is: 5,499.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,636.26 : 9,158.80 = 3,985.12 : x
  2. Step 2: Convert to fraction form
    6,636.26/9,158.80 = 3,985.12/x
  3. Step 3: Cross multiply
    6,636.26x = 9,158.80 × 3,985.12
  4. Step 4: Simplify right side
    6,636.26x = 36,498,917.06
  5. Step 5: Solve for x
    x = 36,498,917.06/6,636.26
  6. Step 6: Final answer
    x = 5,499.92

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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.