Home / 2,015.35-2,782.16-1,351.96

Finding the Fourth Proportional to 2,015.35, 2,782.16 and 1,351.96

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Solution

The fourth proportional to 2,015.35, 2,782.16 and 1,351.96 is: 1,866.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,015.35 : 2,782.16 = 1,351.96 : x
  2. Step 2: Convert to fraction form
    2,015.35/2,782.16 = 1,351.96/x
  3. Step 3: Cross multiply
    2,015.35x = 2,782.16 × 1,351.96
  4. Step 4: Simplify right side
    2,015.35x = 3,761,369.03
  5. Step 5: Solve for x
    x = 3,761,369.03/2,015.35
  6. Step 6: Final answer
    x = 1,866.36

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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.