Home / 3,118.84-4,303.80-1,939.88

Finding the Fourth Proportional to 3,118.84, 4,303.80 and 1,939.88

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Solution

The fourth proportional to 3,118.84, 4,303.80 and 1,939.88 is: 2,676.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,118.84 : 4,303.80 = 1,939.88 : x
  2. Step 2: Convert to fraction form
    3,118.84/4,303.80 = 1,939.88/x
  3. Step 3: Cross multiply
    3,118.84x = 4,303.80 × 1,939.88
  4. Step 4: Simplify right side
    3,118.84x = 8,348,855.54
  5. Step 5: Solve for x
    x = 8,348,855.54/3,118.84
  6. Step 6: Final answer
    x = 2,676.91

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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.