Home / 3,181.55-4,390.94-1,784.57

Finding the Fourth Proportional to 3,181.55, 4,390.94 and 1,784.57

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Solution

The fourth proportional to 3,181.55, 4,390.94 and 1,784.57 is: 2,462.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,181.55 : 4,390.94 = 1,784.57 : x
  2. Step 2: Convert to fraction form
    3,181.55/4,390.94 = 1,784.57/x
  3. Step 3: Cross multiply
    3,181.55x = 4,390.94 × 1,784.57
  4. Step 4: Simplify right side
    3,181.55x = 7,835,922.30
  5. Step 5: Solve for x
    x = 7,835,922.30/3,181.55
  6. Step 6: Final answer
    x = 2,462.93

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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.