Home / 3,290.92-4,540.26-2,111.56

Finding the Fourth Proportional to 3,290.92, 4,540.26 and 2,111.56

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Solution

The fourth proportional to 3,290.92, 4,540.26 and 2,111.56 is: 2,913.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,290.92 : 4,540.26 = 2,111.56 : x
  2. Step 2: Convert to fraction form
    3,290.92/4,540.26 = 2,111.56/x
  3. Step 3: Cross multiply
    3,290.92x = 4,540.26 × 2,111.56
  4. Step 4: Simplify right side
    3,290.92x = 9,587,031.41
  5. Step 5: Solve for x
    x = 9,587,031.41/3,290.92
  6. Step 6: Final answer
    x = 2,913.18

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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.