Home / 1,927.09-2,659.21-1,180.90

Finding the Fourth Proportional to 1,927.09, 2,659.21 and 1,180.90

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Solution

The fourth proportional to 1,927.09, 2,659.21 and 1,180.90 is: 1,629.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,927.09 : 2,659.21 = 1,180.90 : x
  2. Step 2: Convert to fraction form
    1,927.09/2,659.21 = 1,180.90/x
  3. Step 3: Cross multiply
    1,927.09x = 2,659.21 × 1,180.90
  4. Step 4: Simplify right side
    1,927.09x = 3,140,261.09
  5. Step 5: Solve for x
    x = 3,140,261.09/1,927.09
  6. Step 6: Final answer
    x = 1,629.54

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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.