Home / 3,938.41-5,435.24-2,170.01

Finding the Fourth Proportional to 3,938.41, 5,435.24 and 2,170.01

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Solution

The fourth proportional to 3,938.41, 5,435.24 and 2,170.01 is: 2,994.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,938.41 : 5,435.24 = 2,170.01 : x
  2. Step 2: Convert to fraction form
    3,938.41/5,435.24 = 2,170.01/x
  3. Step 3: Cross multiply
    3,938.41x = 5,435.24 × 2,170.01
  4. Step 4: Simplify right side
    3,938.41x = 11,794,525.15
  5. Step 5: Solve for x
    x = 11,794,525.15/3,938.41
  6. Step 6: Final answer
    x = 2,994.74

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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.