Home / 3,212.63-4,821.69-2,290.45

Finding the Fourth Proportional to 3,212.63, 4,821.69 and 2,290.45

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Solution

The fourth proportional to 3,212.63, 4,821.69 and 2,290.45 is: 3,437.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,212.63 : 4,821.69 = 2,290.45 : x
  2. Step 2: Convert to fraction form
    3,212.63/4,821.69 = 2,290.45/x
  3. Step 3: Cross multiply
    3,212.63x = 4,821.69 × 2,290.45
  4. Step 4: Simplify right side
    3,212.63x = 11,043,839.86
  5. Step 5: Solve for x
    x = 11,043,839.86/3,212.63
  6. Step 6: Final answer
    x = 3,437.63

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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.