Home / 5,083.20-7,621.20-2,311.20

Finding the Fourth Proportional to 5,083.20, 7,621.20 and 2,311.20

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Solution

The fourth proportional to 5,083.20, 7,621.20 and 2,311.20 is: 3,465.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,083.20 : 7,621.20 = 2,311.20 : x
  2. Step 2: Convert to fraction form
    5,083.20/7,621.20 = 2,311.20/x
  3. Step 3: Cross multiply
    5,083.20x = 7,621.20 × 2,311.20
  4. Step 4: Simplify right side
    5,083.20x = 17,614,117.44
  5. Step 5: Solve for x
    x = 17,614,117.44/5,083.20
  6. Step 6: Final answer
    x = 3,465.16

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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.