Home / 4,255.72-6,383.78-1,135.80

Finding the Fourth Proportional to 4,255.72, 6,383.78 and 1,135.80

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Solution

The fourth proportional to 4,255.72, 6,383.78 and 1,135.80 is: 1,703.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,255.72 : 6,383.78 = 1,135.80 : x
  2. Step 2: Convert to fraction form
    4,255.72/6,383.78 = 1,135.80/x
  3. Step 3: Cross multiply
    4,255.72x = 6,383.78 × 1,135.80
  4. Step 4: Simplify right side
    4,255.72x = 7,250,697.32
  5. Step 5: Solve for x
    x = 7,250,697.32/4,255.72
  6. Step 6: Final answer
    x = 1,703.75

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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.