Home / 1,276.48-1,914.72-1,093.60

Finding the Fourth Proportional to 1,276.48, 1,914.72 and 1,093.60

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Solution

The fourth proportional to 1,276.48, 1,914.72 and 1,093.60 is: 1,640.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,276.48 : 1,914.72 = 1,093.60 : x
  2. Step 2: Convert to fraction form
    1,276.48/1,914.72 = 1,093.60/x
  3. Step 3: Cross multiply
    1,276.48x = 1,914.72 × 1,093.60
  4. Step 4: Simplify right side
    1,276.48x = 2,093,937.79
  5. Step 5: Solve for x
    x = 2,093,937.79/1,276.48
  6. Step 6: Final answer
    x = 1,640.40

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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.