Home / 2,855.26-4,279.59-1,313.02

Finding the Fourth Proportional to 2,855.26, 4,279.59 and 1,313.02

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Solution

The fourth proportional to 2,855.26, 4,279.59 and 1,313.02 is: 1,968.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,855.26 : 4,279.59 = 1,313.02 : x
  2. Step 2: Convert to fraction form
    2,855.26/4,279.59 = 1,313.02/x
  3. Step 3: Cross multiply
    2,855.26x = 4,279.59 × 1,313.02
  4. Step 4: Simplify right side
    2,855.26x = 5,619,187.26
  5. Step 5: Solve for x
    x = 5,619,187.26/2,855.26
  6. Step 6: Final answer
    x = 1,968.01

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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.