Home / 3,172.96-4,758.78-1,855.84

Finding the Fourth Proportional to 3,172.96, 4,758.78 and 1,855.84

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Solution

The fourth proportional to 3,172.96, 4,758.78 and 1,855.84 is: 2,783.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,172.96 : 4,758.78 = 1,855.84 : x
  2. Step 2: Convert to fraction form
    3,172.96/4,758.78 = 1,855.84/x
  3. Step 3: Cross multiply
    3,172.96x = 4,758.78 × 1,855.84
  4. Step 4: Simplify right side
    3,172.96x = 8,831,534.28
  5. Step 5: Solve for x
    x = 8,831,534.28/3,172.96
  6. Step 6: Final answer
    x = 2,783.37

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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.