Home / 3,181.48-4,390.35-1,855.09

Finding the Fourth Proportional to 3,181.48, 4,390.35 and 1,855.09

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Solution

The fourth proportional to 3,181.48, 4,390.35 and 1,855.09 is: 2,559.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,181.48 : 4,390.35 = 1,855.09 : x
  2. Step 2: Convert to fraction form
    3,181.48/4,390.35 = 1,855.09/x
  3. Step 3: Cross multiply
    3,181.48x = 4,390.35 × 1,855.09
  4. Step 4: Simplify right side
    3,181.48x = 8,144,497.17
  5. Step 5: Solve for x
    x = 8,144,497.17/3,181.48
  6. Step 6: Final answer
    x = 2,559.97

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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.