Home / 5,979.88-8,972.09-2,692.21

Finding the Fourth Proportional to 5,979.88, 8,972.09 and 2,692.21

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Solution

The fourth proportional to 5,979.88, 8,972.09 and 2,692.21 is: 4,039.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,979.88 : 8,972.09 = 2,692.21 : x
  2. Step 2: Convert to fraction form
    5,979.88/8,972.09 = 2,692.21/x
  3. Step 3: Cross multiply
    5,979.88x = 8,972.09 × 2,692.21
  4. Step 4: Simplify right side
    5,979.88x = 24,154,774.25
  5. Step 5: Solve for x
    x = 24,154,774.25/5,979.88
  6. Step 6: Final answer
    x = 4,039.34

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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.