Home / 2,091.58-3,138.41-1,479.22

Finding the Fourth Proportional to 2,091.58, 3,138.41 and 1,479.22

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Solution

The fourth proportional to 2,091.58, 3,138.41 and 1,479.22 is: 2,219.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,091.58 : 3,138.41 = 1,479.22 : x
  2. Step 2: Convert to fraction form
    2,091.58/3,138.41 = 1,479.22/x
  3. Step 3: Cross multiply
    2,091.58x = 3,138.41 × 1,479.22
  4. Step 4: Simplify right side
    2,091.58x = 4,642,398.84
  5. Step 5: Solve for x
    x = 4,642,398.84/2,091.58
  6. Step 6: Final answer
    x = 2,219.57

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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.