Home / 5,076.18-7,005.39-3,086.40

Finding the Fourth Proportional to 5,076.18, 7,005.39 and 3,086.40

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Solution

The fourth proportional to 5,076.18, 7,005.39 and 3,086.40 is: 4,259.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,076.18 : 7,005.39 = 3,086.40 : x
  2. Step 2: Convert to fraction form
    5,076.18/7,005.39 = 3,086.40/x
  3. Step 3: Cross multiply
    5,076.18x = 7,005.39 × 3,086.40
  4. Step 4: Simplify right side
    5,076.18x = 21,621,435.70
  5. Step 5: Solve for x
    x = 21,621,435.70/5,076.18
  6. Step 6: Final answer
    x = 4,259.39

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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.