Home / 3,181.14-4,390.18-1,764.90

Finding the Fourth Proportional to 3,181.14, 4,390.18 and 1,764.90

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Solution

The fourth proportional to 3,181.14, 4,390.18 and 1,764.90 is: 2,435.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,181.14 : 4,390.18 = 1,764.90 : x
  2. Step 2: Convert to fraction form
    3,181.14/4,390.18 = 1,764.90/x
  3. Step 3: Cross multiply
    3,181.14x = 4,390.18 × 1,764.90
  4. Step 4: Simplify right side
    3,181.14x = 7,748,228.68
  5. Step 5: Solve for x
    x = 7,748,228.68/3,181.14
  6. Step 6: Final answer
    x = 2,435.68

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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.