Home / 3,678.41-5,076.29-1,999.82

Finding the Fourth Proportional to 3,678.41, 5,076.29 and 1,999.82

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Solution

The fourth proportional to 3,678.41, 5,076.29 and 1,999.82 is: 2,759.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,678.41 : 5,076.29 = 1,999.82 : x
  2. Step 2: Convert to fraction form
    3,678.41/5,076.29 = 1,999.82/x
  3. Step 3: Cross multiply
    3,678.41x = 5,076.29 × 1,999.82
  4. Step 4: Simplify right side
    3,678.41x = 10,151,683.96
  5. Step 5: Solve for x
    x = 10,151,683.96/3,678.41
  6. Step 6: Final answer
    x = 2,759.80

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1.5x scale

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.