Home / 2,486.45-3,721.55-1,828.15

Finding the Fourth Proportional to 2,486.45, 3,721.55 and 1,828.15

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Solution

The fourth proportional to 2,486.45, 3,721.55 and 1,828.15 is: 2,736.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,486.45 : 3,721.55 = 1,828.15 : x
  2. Step 2: Convert to fraction form
    2,486.45/3,721.55 = 1,828.15/x
  3. Step 3: Cross multiply
    2,486.45x = 3,721.55 × 1,828.15
  4. Step 4: Simplify right side
    2,486.45x = 6,803,546.90
  5. Step 5: Solve for x
    x = 6,803,546.90/2,486.45
  6. Step 6: Final answer
    x = 2,736.25

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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.