Home / 3,988.98-5,986.03-1,935.86

Finding the Fourth Proportional to 3,988.98, 5,986.03 and 1,935.86

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Solution

The fourth proportional to 3,988.98, 5,986.03 and 1,935.86 is: 2,905.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,988.98 : 5,986.03 = 1,935.86 : x
  2. Step 2: Convert to fraction form
    3,988.98/5,986.03 = 1,935.86/x
  3. Step 3: Cross multiply
    3,988.98x = 5,986.03 × 1,935.86
  4. Step 4: Simplify right side
    3,988.98x = 11,588,116.04
  5. Step 5: Solve for x
    x = 11,588,116.04/3,988.98
  6. Step 6: Final answer
    x = 2,905.03

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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.