Home / 3,610.31-5,411.81-1,418.18

Finding the Fourth Proportional to 3,610.31, 5,411.81 and 1,418.18

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Solution

The fourth proportional to 3,610.31, 5,411.81 and 1,418.18 is: 2,125.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,610.31 : 5,411.81 = 1,418.18 : x
  2. Step 2: Convert to fraction form
    3,610.31/5,411.81 = 1,418.18/x
  3. Step 3: Cross multiply
    3,610.31x = 5,411.81 × 1,418.18
  4. Step 4: Simplify right side
    3,610.31x = 7,674,897.19
  5. Step 5: Solve for x
    x = 7,674,897.19/3,610.31
  6. Step 6: Final answer
    x = 2,125.83

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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.