Home / 3,961.78-5,942.70-1,040.06

Finding the Fourth Proportional to 3,961.78, 5,942.70 and 1,040.06

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Solution

The fourth proportional to 3,961.78, 5,942.70 and 1,040.06 is: 1,560.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,961.78 : 5,942.70 = 1,040.06 : x
  2. Step 2: Convert to fraction form
    3,961.78/5,942.70 = 1,040.06/x
  3. Step 3: Cross multiply
    3,961.78x = 5,942.70 × 1,040.06
  4. Step 4: Simplify right side
    3,961.78x = 6,180,779.42
  5. Step 5: Solve for x
    x = 6,180,779.42/3,961.78
  6. Step 6: Final answer
    x = 1,560.10

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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.