Home / 3,428.34-5,141.37-1,347.81

Finding the Fourth Proportional to 3,428.34, 5,141.37 and 1,347.81

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Solution

The fourth proportional to 3,428.34, 5,141.37 and 1,347.81 is: 2,021.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,428.34 : 5,141.37 = 1,347.81 : x
  2. Step 2: Convert to fraction form
    3,428.34/5,141.37 = 1,347.81/x
  3. Step 3: Cross multiply
    3,428.34x = 5,141.37 × 1,347.81
  4. Step 4: Simplify right side
    3,428.34x = 6,929,575.67
  5. Step 5: Solve for x
    x = 6,929,575.67/3,428.34
  6. Step 6: Final answer
    x = 2,021.26

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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.