Home / 6,368.21-9,553.26-1,986

Finding the Fourth Proportional to 6,368.21, 9,553.26 and 1,986

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Solution

The fourth proportional to 6,368.21, 9,553.26 and 1,986 is: 2,979.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,368.21 : 9,553.26 = 1,986 : x
  2. Step 2: Convert to fraction form
    6,368.21/9,553.26 = 1,986/x
  3. Step 3: Cross multiply
    6,368.21x = 9,553.26 × 1,986
  4. Step 4: Simplify right side
    6,368.21x = 18,972,774.36
  5. Step 5: Solve for x
    x = 18,972,774.36/6,368.21
  6. Step 6: Final answer
    x = 2,979.30

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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.