Home / 3,974.64-5,964.36-1,379.40

Finding the Fourth Proportional to 3,974.64, 5,964.36 and 1,379.40

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Solution

The fourth proportional to 3,974.64, 5,964.36 and 1,379.40 is: 2,069.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,974.64 : 5,964.36 = 1,379.40 : x
  2. Step 2: Convert to fraction form
    3,974.64/5,964.36 = 1,379.40/x
  3. Step 3: Cross multiply
    3,974.64x = 5,964.36 × 1,379.40
  4. Step 4: Simplify right side
    3,974.64x = 8,227,238.18
  5. Step 5: Solve for x
    x = 8,227,238.18/3,974.64
  6. Step 6: Final answer
    x = 2,069.93

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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.