Home / 3,081.88-4,621.19-1,521.82

Finding the Fourth Proportional to 3,081.88, 4,621.19 and 1,521.82

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Solution

The fourth proportional to 3,081.88, 4,621.19 and 1,521.82 is: 2,281.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,081.88 : 4,621.19 = 1,521.82 : x
  2. Step 2: Convert to fraction form
    3,081.88/4,621.19 = 1,521.82/x
  3. Step 3: Cross multiply
    3,081.88x = 4,621.19 × 1,521.82
  4. Step 4: Simplify right side
    3,081.88x = 7,032,619.37
  5. Step 5: Solve for x
    x = 7,032,619.37/3,081.88
  6. Step 6: Final answer
    x = 2,281.93

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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.