Home / 6,636.87-9,157.41-3,840.75

Finding the Fourth Proportional to 6,636.87, 9,157.41 and 3,840.75

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Solution

The fourth proportional to 6,636.87, 9,157.41 and 3,840.75 is: 5,299.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,636.87 : 9,157.41 = 3,840.75 : x
  2. Step 2: Convert to fraction form
    6,636.87/9,157.41 = 3,840.75/x
  3. Step 3: Cross multiply
    6,636.87x = 9,157.41 × 3,840.75
  4. Step 4: Simplify right side
    6,636.87x = 35,171,322.46
  5. Step 5: Solve for x
    x = 35,171,322.46/6,636.87
  6. Step 6: Final answer
    x = 5,299.38

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Half scale
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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.