Home / 3,181.68-4,390.71-1,784.46

Finding the Fourth Proportional to 3,181.68, 4,390.71 and 1,784.46

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Solution

The fourth proportional to 3,181.68, 4,390.71 and 1,784.46 is: 2,462.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,181.68 : 4,390.71 = 1,784.46 : x
  2. Step 2: Convert to fraction form
    3,181.68/4,390.71 = 1,784.46/x
  3. Step 3: Cross multiply
    3,181.68x = 4,390.71 × 1,784.46
  4. Step 4: Simplify right side
    3,181.68x = 7,835,046.37
  5. Step 5: Solve for x
    x = 7,835,046.37/3,181.68
  6. Step 6: Final answer
    x = 2,462.55

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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.