Home / 3,618.36-5,428.48-1,671.96

Finding the Fourth Proportional to 3,618.36, 5,428.48 and 1,671.96

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Solution

The fourth proportional to 3,618.36, 5,428.48 and 1,671.96 is: 2,508.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,618.36 : 5,428.48 = 1,671.96 : x
  2. Step 2: Convert to fraction form
    3,618.36/5,428.48 = 1,671.96/x
  3. Step 3: Cross multiply
    3,618.36x = 5,428.48 × 1,671.96
  4. Step 4: Simplify right side
    3,618.36x = 9,076,201.42
  5. Step 5: Solve for x
    x = 9,076,201.42/3,618.36
  6. Step 6: Final answer
    x = 2,508.37

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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.