Home / 3,218.43-4,442.80-2,100.33

Finding the Fourth Proportional to 3,218.43, 4,442.80 and 2,100.33

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Solution

The fourth proportional to 3,218.43, 4,442.80 and 2,100.33 is: 2,899.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,218.43 : 4,442.80 = 2,100.33 : x
  2. Step 2: Convert to fraction form
    3,218.43/4,442.80 = 2,100.33/x
  3. Step 3: Cross multiply
    3,218.43x = 4,442.80 × 2,100.33
  4. Step 4: Simplify right side
    3,218.43x = 9,331,344.81
  5. Step 5: Solve for x
    x = 9,331,344.81/3,218.43
  6. Step 6: Final answer
    x = 2,899.34

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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.