Home / 4,135.36-6,199.80-2,815.60

Finding the Fourth Proportional to 4,135.36, 6,199.80 and 2,815.60

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Solution

The fourth proportional to 4,135.36, 6,199.80 and 2,815.60 is: 4,221.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,135.36 : 6,199.80 = 2,815.60 : x
  2. Step 2: Convert to fraction form
    4,135.36/6,199.80 = 2,815.60/x
  3. Step 3: Cross multiply
    4,135.36x = 6,199.80 × 2,815.60
  4. Step 4: Simplify right side
    4,135.36x = 17,456,156.88
  5. Step 5: Solve for x
    x = 17,456,156.88/4,135.36
  6. Step 6: Final answer
    x = 4,221.19

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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.