Home / 1,928.88-2,662.44-1,308.24

Finding the Fourth Proportional to 1,928.88, 2,662.44 and 1,308.24

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Solution

The fourth proportional to 1,928.88, 2,662.44 and 1,308.24 is: 1,805.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,928.88 : 2,662.44 = 1,308.24 : x
  2. Step 2: Convert to fraction form
    1,928.88/2,662.44 = 1,308.24/x
  3. Step 3: Cross multiply
    1,928.88x = 2,662.44 × 1,308.24
  4. Step 4: Simplify right side
    1,928.88x = 3,483,110.51
  5. Step 5: Solve for x
    x = 3,483,110.51/1,928.88
  6. Step 6: Final answer
    x = 1,805.77

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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.