Home / 1,864.80-2,791.44-1,683.36

Finding the Fourth Proportional to 1,864.80, 2,791.44 and 1,683.36

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Solution

The fourth proportional to 1,864.80, 2,791.44 and 1,683.36 is: 2,519.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,864.80 : 2,791.44 = 1,683.36 : x
  2. Step 2: Convert to fraction form
    1,864.80/2,791.44 = 1,683.36/x
  3. Step 3: Cross multiply
    1,864.80x = 2,791.44 × 1,683.36
  4. Step 4: Simplify right side
    1,864.80x = 4,698,998.44
  5. Step 5: Solve for x
    x = 4,698,998.44/1,864.80
  6. Step 6: Final answer
    x = 2,519.84

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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.