Home / 3,212.26-4,431.81-1,885.07

Finding the Fourth Proportional to 3,212.26, 4,431.81 and 1,885.07

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Solution

The fourth proportional to 3,212.26, 4,431.81 and 1,885.07 is: 2,600.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,212.26 : 4,431.81 = 1,885.07 : x
  2. Step 2: Convert to fraction form
    3,212.26/4,431.81 = 1,885.07/x
  3. Step 3: Cross multiply
    3,212.26x = 4,431.81 × 1,885.07
  4. Step 4: Simplify right side
    3,212.26x = 8,354,290.23
  5. Step 5: Solve for x
    x = 8,354,290.23/3,212.26
  6. Step 6: Final answer
    x = 2,600.75

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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.