Home / 3,213.44-4,433.74-1,886.89

Finding the Fourth Proportional to 3,213.44, 4,433.74 and 1,886.89

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Solution

The fourth proportional to 3,213.44, 4,433.74 and 1,886.89 is: 2,603.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,213.44 : 4,433.74 = 1,886.89 : x
  2. Step 2: Convert to fraction form
    3,213.44/4,433.74 = 1,886.89/x
  3. Step 3: Cross multiply
    3,213.44x = 4,433.74 × 1,886.89
  4. Step 4: Simplify right side
    3,213.44x = 8,365,948.07
  5. Step 5: Solve for x
    x = 8,365,948.07/3,213.44
  6. Step 6: Final answer
    x = 2,603.42

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.