Home / 1,939.73-2,675.88-1,153.22

Finding the Fourth Proportional to 1,939.73, 2,675.88 and 1,153.22

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Solution

The fourth proportional to 1,939.73, 2,675.88 and 1,153.22 is: 1,590.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,939.73 : 2,675.88 = 1,153.22 : x
  2. Step 2: Convert to fraction form
    1,939.73/2,675.88 = 1,153.22/x
  3. Step 3: Cross multiply
    1,939.73x = 2,675.88 × 1,153.22
  4. Step 4: Simplify right side
    1,939.73x = 3,085,878.33
  5. Step 5: Solve for x
    x = 3,085,878.33/1,939.73
  6. Step 6: Final answer
    x = 1,590.88

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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.