Home / 3,128.48-4,693.80-1,181.24

Finding the Fourth Proportional to 3,128.48, 4,693.80 and 1,181.24

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Solution

The fourth proportional to 3,128.48, 4,693.80 and 1,181.24 is: 1,772.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,128.48 : 4,693.80 = 1,181.24 : x
  2. Step 2: Convert to fraction form
    3,128.48/4,693.80 = 1,181.24/x
  3. Step 3: Cross multiply
    3,128.48x = 4,693.80 × 1,181.24
  4. Step 4: Simplify right side
    3,128.48x = 5,544,504.31
  5. Step 5: Solve for x
    x = 5,544,504.31/3,128.48
  6. Step 6: Final answer
    x = 1,772.27

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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.