Home / 3,255.36-4,492.80-1,928.88

Finding the Fourth Proportional to 3,255.36, 4,492.80 and 1,928.88

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Solution

The fourth proportional to 3,255.36, 4,492.80 and 1,928.88 is: 2,662.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,255.36 : 4,492.80 = 1,928.88 : x
  2. Step 2: Convert to fraction form
    3,255.36/4,492.80 = 1,928.88/x
  3. Step 3: Cross multiply
    3,255.36x = 4,492.80 × 1,928.88
  4. Step 4: Simplify right side
    3,255.36x = 8,666,072.06
  5. Step 5: Solve for x
    x = 8,666,072.06/3,255.36
  6. Step 6: Final answer
    x = 2,662.09

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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.