Home / 3,181.17-4,389.81-1,764.81

Finding the Fourth Proportional to 3,181.17, 4,389.81 and 1,764.81

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Solution

The fourth proportional to 3,181.17, 4,389.81 and 1,764.81 is: 2,435.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,181.17 : 4,389.81 = 1,764.81 : x
  2. Step 2: Convert to fraction form
    3,181.17/4,389.81 = 1,764.81/x
  3. Step 3: Cross multiply
    3,181.17x = 4,389.81 × 1,764.81
  4. Step 4: Simplify right side
    3,181.17x = 7,747,180.59
  5. Step 5: Solve for x
    x = 7,747,180.59/3,181.17
  6. Step 6: Final answer
    x = 2,435.32

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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.