Home / 5,219.08-7,821.34-3,751.36

Finding the Fourth Proportional to 5,219.08, 7,821.34 and 3,751.36

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Solution

The fourth proportional to 5,219.08, 7,821.34 and 3,751.36 is: 5,621.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,219.08 : 7,821.34 = 3,751.36 : x
  2. Step 2: Convert to fraction form
    5,219.08/7,821.34 = 3,751.36/x
  3. Step 3: Cross multiply
    5,219.08x = 7,821.34 × 3,751.36
  4. Step 4: Simplify right side
    5,219.08x = 29,340,662.02
  5. Step 5: Solve for x
    x = 29,340,662.02/5,219.08
  6. Step 6: Final answer
    x = 5,621.81

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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.