Home / 2,620.37-3,920.01-2,259.65

Finding the Fourth Proportional to 2,620.37, 3,920.01 and 2,259.65

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Solution

The fourth proportional to 2,620.37, 3,920.01 and 2,259.65 is: 3,380.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,620.37 : 3,920.01 = 2,259.65 : x
  2. Step 2: Convert to fraction form
    2,620.37/3,920.01 = 2,259.65/x
  3. Step 3: Cross multiply
    2,620.37x = 3,920.01 × 2,259.65
  4. Step 4: Simplify right side
    2,620.37x = 8,857,831.00
  5. Step 5: Solve for x
    x = 8,857,831.00/2,620.37
  6. Step 6: Final answer
    x = 3,380.38

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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.