Home / 2,814.22-3,883.60-1,555.25

Finding the Fourth Proportional to 2,814.22, 3,883.60 and 1,555.25

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Solution

The fourth proportional to 2,814.22, 3,883.60 and 1,555.25 is: 2,146.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,814.22 : 3,883.60 = 1,555.25 : x
  2. Step 2: Convert to fraction form
    2,814.22/3,883.60 = 1,555.25/x
  3. Step 3: Cross multiply
    2,814.22x = 3,883.60 × 1,555.25
  4. Step 4: Simplify right side
    2,814.22x = 6,039,945.59
  5. Step 5: Solve for x
    x = 6,039,945.59/2,814.22
  6. Step 6: Final answer
    x = 2,146.23

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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.