Home / 1,801.83-2,486.36-1,138.44

Finding the Fourth Proportional to 1,801.83, 2,486.36 and 1,138.44

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Solution

The fourth proportional to 1,801.83, 2,486.36 and 1,138.44 is: 1,570.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,801.83 : 2,486.36 = 1,138.44 : x
  2. Step 2: Convert to fraction form
    1,801.83/2,486.36 = 1,138.44/x
  3. Step 3: Cross multiply
    1,801.83x = 2,486.36 × 1,138.44
  4. Step 4: Simplify right side
    1,801.83x = 2,830,571.68
  5. Step 5: Solve for x
    x = 2,830,571.68/1,801.83
  6. Step 6: Final answer
    x = 1,570.94

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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.