Home / 3,118.42-4,676.19-1,820.26

Finding the Fourth Proportional to 3,118.42, 4,676.19 and 1,820.26

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Solution

The fourth proportional to 3,118.42, 4,676.19 and 1,820.26 is: 2,729.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,118.42 : 4,676.19 = 1,820.26 : x
  2. Step 2: Convert to fraction form
    3,118.42/4,676.19 = 1,820.26/x
  3. Step 3: Cross multiply
    3,118.42x = 4,676.19 × 1,820.26
  4. Step 4: Simplify right side
    3,118.42x = 8,511,881.61
  5. Step 5: Solve for x
    x = 8,511,881.61/3,118.42
  6. Step 6: Final answer
    x = 2,729.55

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.