Home / 2,818.81-4,225.92-1,891.54

Finding the Fourth Proportional to 2,818.81, 4,225.92 and 1,891.54

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Solution

The fourth proportional to 2,818.81, 4,225.92 and 1,891.54 is: 2,835.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,818.81 : 4,225.92 = 1,891.54 : x
  2. Step 2: Convert to fraction form
    2,818.81/4,225.92 = 1,891.54/x
  3. Step 3: Cross multiply
    2,818.81x = 4,225.92 × 1,891.54
  4. Step 4: Simplify right side
    2,818.81x = 7,993,496.72
  5. Step 5: Solve for x
    x = 7,993,496.72/2,818.81
  6. Step 6: Final answer
    x = 2,835.77

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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.