Home / 1,276.75-1,914.80-352.26

Finding the Fourth Proportional to 1,276.75, 1,914.80 and 352.26

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Solution

The fourth proportional to 1,276.75, 1,914.80 and 352.26 is: 528.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,276.75 : 1,914.80 = 352.26 : x
  2. Step 2: Convert to fraction form
    1,276.75/1,914.80 = 352.26/x
  3. Step 3: Cross multiply
    1,276.75x = 1,914.80 × 352.26
  4. Step 4: Simplify right side
    1,276.75x = 674,507.45
  5. Step 5: Solve for x
    x = 674,507.45/1,276.75
  6. Step 6: Final answer
    x = 528.30

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.