Home / 3,076.32-4,615.09-1,128.54

Finding the Fourth Proportional to 3,076.32, 4,615.09 and 1,128.54

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Solution

The fourth proportional to 3,076.32, 4,615.09 and 1,128.54 is: 1,693.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,076.32 : 4,615.09 = 1,128.54 : x
  2. Step 2: Convert to fraction form
    3,076.32/4,615.09 = 1,128.54/x
  3. Step 3: Cross multiply
    3,076.32x = 4,615.09 × 1,128.54
  4. Step 4: Simplify right side
    3,076.32x = 5,208,308.03
  5. Step 5: Solve for x
    x = 5,208,308.03/3,076.32
  6. Step 6: Final answer
    x = 1,693.03

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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.