Home / 5,577.21-7,696.89-3,219.50

Finding the Fourth Proportional to 5,577.21, 7,696.89 and 3,219.50

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Solution

The fourth proportional to 5,577.21, 7,696.89 and 3,219.50 is: 4,443.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,577.21 : 7,696.89 = 3,219.50 : x
  2. Step 2: Convert to fraction form
    5,577.21/7,696.89 = 3,219.50/x
  3. Step 3: Cross multiply
    5,577.21x = 7,696.89 × 3,219.50
  4. Step 4: Simplify right side
    5,577.21x = 24,780,156.60
  5. Step 5: Solve for x
    x = 24,780,156.60/5,577.21
  6. Step 6: Final answer
    x = 4,443.11

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.