Home / 4,190.64-6,280-3,086.32

Finding the Fourth Proportional to 4,190.64, 6,280 and 3,086.32

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Solution

The fourth proportional to 4,190.64, 6,280 and 3,086.32 is: 4,625.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,190.64 : 6,280 = 3,086.32 : x
  2. Step 2: Convert to fraction form
    4,190.64/6,280 = 3,086.32/x
  3. Step 3: Cross multiply
    4,190.64x = 6,280 × 3,086.32
  4. Step 4: Simplify right side
    4,190.64x = 19,382,089.60
  5. Step 5: Solve for x
    x = 19,382,089.60/4,190.64
  6. Step 6: Final answer
    x = 4,625.09

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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.