Home / 3,395.28-5,090.31-1,639.38

Finding the Fourth Proportional to 3,395.28, 5,090.31 and 1,639.38

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Solution

The fourth proportional to 3,395.28, 5,090.31 and 1,639.38 is: 2,457.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,395.28 : 5,090.31 = 1,639.38 : x
  2. Step 2: Convert to fraction form
    3,395.28/5,090.31 = 1,639.38/x
  3. Step 3: Cross multiply
    3,395.28x = 5,090.31 × 1,639.38
  4. Step 4: Simplify right side
    3,395.28x = 8,344,952.41
  5. Step 5: Solve for x
    x = 8,344,952.41/3,395.28
  6. Step 6: Final answer
    x = 2,457.81

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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.