Home / 2,758.36-4,137.48-1,296.70

Finding the Fourth Proportional to 2,758.36, 4,137.48 and 1,296.70

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Solution

The fourth proportional to 2,758.36, 4,137.48 and 1,296.70 is: 1,945.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,758.36 : 4,137.48 = 1,296.70 : x
  2. Step 2: Convert to fraction form
    2,758.36/4,137.48 = 1,296.70/x
  3. Step 3: Cross multiply
    2,758.36x = 4,137.48 × 1,296.70
  4. Step 4: Simplify right side
    2,758.36x = 5,365,070.32
  5. Step 5: Solve for x
    x = 5,365,070.32/2,758.36
  6. Step 6: Final answer
    x = 1,945.02

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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.