Home / 2,814.09-3,883.71-1,555.44

Finding the Fourth Proportional to 2,814.09, 3,883.71 and 1,555.44

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Solution

The fourth proportional to 2,814.09, 3,883.71 and 1,555.44 is: 2,146.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,814.09 : 3,883.71 = 1,555.44 : x
  2. Step 2: Convert to fraction form
    2,814.09/3,883.71 = 1,555.44/x
  3. Step 3: Cross multiply
    2,814.09x = 3,883.71 × 1,555.44
  4. Step 4: Simplify right side
    2,814.09x = 6,040,877.88
  5. Step 5: Solve for x
    x = 6,040,877.88/2,814.09
  6. Step 6: Final answer
    x = 2,146.65

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1.5x scale

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.