Home / 4,112.78-6,172.35-1,647.84

Finding the Fourth Proportional to 4,112.78, 6,172.35 and 1,647.84

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Solution

The fourth proportional to 4,112.78, 6,172.35 and 1,647.84 is: 2,473.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,112.78 : 6,172.35 = 1,647.84 : x
  2. Step 2: Convert to fraction form
    4,112.78/6,172.35 = 1,647.84/x
  3. Step 3: Cross multiply
    4,112.78x = 6,172.35 × 1,647.84
  4. Step 4: Simplify right side
    4,112.78x = 10,171,045.22
  5. Step 5: Solve for x
    x = 10,171,045.22/4,112.78
  6. Step 6: Final answer
    x = 2,473.04

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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.