Home / 2,415.09-3,622.37-1,640.07

Finding the Fourth Proportional to 2,415.09, 3,622.37 and 1,640.07

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Solution

The fourth proportional to 2,415.09, 3,622.37 and 1,640.07 is: 2,459.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,415.09 : 3,622.37 = 1,640.07 : x
  2. Step 2: Convert to fraction form
    2,415.09/3,622.37 = 1,640.07/x
  3. Step 3: Cross multiply
    2,415.09x = 3,622.37 × 1,640.07
  4. Step 4: Simplify right side
    2,415.09x = 5,940,932.17
  5. Step 5: Solve for x
    x = 5,940,932.17/2,415.09
  6. Step 6: Final answer
    x = 2,459.92

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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.