Home / 3,986.24-5,979.40-1,064.96

Finding the Fourth Proportional to 3,986.24, 5,979.40 and 1,064.96

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Solution

The fourth proportional to 3,986.24, 5,979.40 and 1,064.96 is: 1,597.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,986.24 : 5,979.40 = 1,064.96 : x
  2. Step 2: Convert to fraction form
    3,986.24/5,979.40 = 1,064.96/x
  3. Step 3: Cross multiply
    3,986.24x = 5,979.40 × 1,064.96
  4. Step 4: Simplify right side
    3,986.24x = 6,367,821.82
  5. Step 5: Solve for x
    x = 6,367,821.82/3,986.24
  6. Step 6: Final answer
    x = 1,597.45

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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.