Home / 2,814.31-3,883.80-1,555.44

Finding the Fourth Proportional to 2,814.31, 3,883.80 and 1,555.44

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Solution

The fourth proportional to 2,814.31, 3,883.80 and 1,555.44 is: 2,146.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,814.31 : 3,883.80 = 1,555.44 : x
  2. Step 2: Convert to fraction form
    2,814.31/3,883.80 = 1,555.44/x
  3. Step 3: Cross multiply
    2,814.31x = 3,883.80 × 1,555.44
  4. Step 4: Simplify right side
    2,814.31x = 6,041,017.87
  5. Step 5: Solve for x
    x = 6,041,017.87/2,814.31
  6. Step 6: Final answer
    x = 2,146.54

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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.