Home / 4,190.87-6,284.00-1,268.80

Finding the Fourth Proportional to 4,190.87, 6,284.00 and 1,268.80

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Solution

The fourth proportional to 4,190.87, 6,284.00 and 1,268.80 is: 1,902.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,190.87 : 6,284.00 = 1,268.80 : x
  2. Step 2: Convert to fraction form
    4,190.87/6,284.00 = 1,268.80/x
  3. Step 3: Cross multiply
    4,190.87x = 6,284.00 × 1,268.80
  4. Step 4: Simplify right side
    4,190.87x = 7,973,126.66
  5. Step 5: Solve for x
    x = 7,973,126.66/4,190.87
  6. Step 6: Final answer
    x = 1,902.50

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.