Home / 3,986.40-5,980.96-2,036.96

Finding the Fourth Proportional to 3,986.40, 5,980.96 and 2,036.96

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Solution

The fourth proportional to 3,986.40, 5,980.96 and 2,036.96 is: 3,056.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,986.40 : 5,980.96 = 2,036.96 : x
  2. Step 2: Convert to fraction form
    3,986.40/5,980.96 = 2,036.96/x
  3. Step 3: Cross multiply
    3,986.40x = 5,980.96 × 2,036.96
  4. Step 4: Simplify right side
    3,986.40x = 12,182,976.28
  5. Step 5: Solve for x
    x = 12,182,976.28/3,986.40
  6. Step 6: Final answer
    x = 3,056.13

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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.