Home / 3,076.35-4,615.13-1,128.57

Finding the Fourth Proportional to 3,076.35, 4,615.13 and 1,128.57

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Solution

The fourth proportional to 3,076.35, 4,615.13 and 1,128.57 is: 1,693.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,076.35 : 4,615.13 = 1,128.57 : x
  2. Step 2: Convert to fraction form
    3,076.35/4,615.13 = 1,128.57/x
  3. Step 3: Cross multiply
    3,076.35x = 4,615.13 × 1,128.57
  4. Step 4: Simplify right side
    3,076.35x = 5,208,497.26
  5. Step 5: Solve for x
    x = 5,208,497.26/3,076.35
  6. Step 6: Final answer
    x = 1,693.08

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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.