Home / 1,891.55-2,610.28-1,192.25

Finding the Fourth Proportional to 1,891.55, 2,610.28 and 1,192.25

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Solution

The fourth proportional to 1,891.55, 2,610.28 and 1,192.25 is: 1,645.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,891.55 : 2,610.28 = 1,192.25 : x
  2. Step 2: Convert to fraction form
    1,891.55/2,610.28 = 1,192.25/x
  3. Step 3: Cross multiply
    1,891.55x = 2,610.28 × 1,192.25
  4. Step 4: Simplify right side
    1,891.55x = 3,112,106.33
  5. Step 5: Solve for x
    x = 3,112,106.33/1,891.55
  6. Step 6: Final answer
    x = 1,645.27

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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.