Home / 2,818.02-3,889.52-1,639.27

Finding the Fourth Proportional to 2,818.02, 3,889.52 and 1,639.27

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Solution

The fourth proportional to 2,818.02, 3,889.52 and 1,639.27 is: 2,262.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,818.02 : 3,889.52 = 1,639.27 : x
  2. Step 2: Convert to fraction form
    2,818.02/3,889.52 = 1,639.27/x
  3. Step 3: Cross multiply
    2,818.02x = 3,889.52 × 1,639.27
  4. Step 4: Simplify right side
    2,818.02x = 6,375,973.45
  5. Step 5: Solve for x
    x = 6,375,973.45/2,818.02
  6. Step 6: Final answer
    x = 2,262.57

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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.