Home / 3,990.35-5,985.83-1,068.27

Finding the Fourth Proportional to 3,990.35, 5,985.83 and 1,068.27

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Solution

The fourth proportional to 3,990.35, 5,985.83 and 1,068.27 is: 1,602.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,990.35 : 5,985.83 = 1,068.27 : x
  2. Step 2: Convert to fraction form
    3,990.35/5,985.83 = 1,068.27/x
  3. Step 3: Cross multiply
    3,990.35x = 5,985.83 × 1,068.27
  4. Step 4: Simplify right side
    3,990.35x = 6,394,477.27
  5. Step 5: Solve for x
    x = 6,394,477.27/3,990.35
  6. Step 6: Final answer
    x = 1,602.49

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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.