Home / 2,763.36-3,813.48-1,521.36

Finding the Fourth Proportional to 2,763.36, 3,813.48 and 1,521.36

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Solution

The fourth proportional to 2,763.36, 3,813.48 and 1,521.36 is: 2,099.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,763.36 : 3,813.48 = 1,521.36 : x
  2. Step 2: Convert to fraction form
    2,763.36/3,813.48 = 1,521.36/x
  3. Step 3: Cross multiply
    2,763.36x = 3,813.48 × 1,521.36
  4. Step 4: Simplify right side
    2,763.36x = 5,801,675.93
  5. Step 5: Solve for x
    x = 5,801,675.93/2,763.36
  6. Step 6: Final answer
    x = 2,099.50

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.