Home / 3,216.51-4,819.91-2,628.86

Finding the Fourth Proportional to 3,216.51, 4,819.91 and 2,628.86

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Solution

The fourth proportional to 3,216.51, 4,819.91 and 2,628.86 is: 3,939.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,216.51 : 4,819.91 = 2,628.86 : x
  2. Step 2: Convert to fraction form
    3,216.51/4,819.91 = 2,628.86/x
  3. Step 3: Cross multiply
    3,216.51x = 4,819.91 × 2,628.86
  4. Step 4: Simplify right side
    3,216.51x = 12,670,831.36
  5. Step 5: Solve for x
    x = 12,670,831.36/3,216.51
  6. Step 6: Final answer
    x = 3,939.31

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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.