Home / 5,692.20-8,539.44-2,405.28

Finding the Fourth Proportional to 5,692.20, 8,539.44 and 2,405.28

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Solution

The fourth proportional to 5,692.20, 8,539.44 and 2,405.28 is: 3,608.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,692.20 : 8,539.44 = 2,405.28 : x
  2. Step 2: Convert to fraction form
    5,692.20/8,539.44 = 2,405.28/x
  3. Step 3: Cross multiply
    5,692.20x = 8,539.44 × 2,405.28
  4. Step 4: Simplify right side
    5,692.20x = 20,539,744.24
  5. Step 5: Solve for x
    x = 20,539,744.24/5,692.20
  6. Step 6: Final answer
    x = 3,608.40

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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.