Home / 2,813.56-4,217.63-1,889.38

Finding the Fourth Proportional to 2,813.56, 4,217.63 and 1,889.38

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Solution

The fourth proportional to 2,813.56, 4,217.63 and 1,889.38 is: 2,832.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,813.56 : 4,217.63 = 1,889.38 : x
  2. Step 2: Convert to fraction form
    2,813.56/4,217.63 = 1,889.38/x
  3. Step 3: Cross multiply
    2,813.56x = 4,217.63 × 1,889.38
  4. Step 4: Simplify right side
    2,813.56x = 7,968,705.77
  5. Step 5: Solve for x
    x = 7,968,705.77/2,813.56
  6. Step 6: Final answer
    x = 2,832.25

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.