Home / 3,540.16-4,885.44-2,142.56

Finding the Fourth Proportional to 3,540.16, 4,885.44 and 2,142.56

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Solution

The fourth proportional to 3,540.16, 4,885.44 and 2,142.56 is: 2,956.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,540.16 : 4,885.44 = 2,142.56 : x
  2. Step 2: Convert to fraction form
    3,540.16/4,885.44 = 2,142.56/x
  3. Step 3: Cross multiply
    3,540.16x = 4,885.44 × 2,142.56
  4. Step 4: Simplify right side
    3,540.16x = 10,467,348.33
  5. Step 5: Solve for x
    x = 10,467,348.33/3,540.16
  6. Step 6: Final answer
    x = 2,956.74

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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.