Home / 2,771.68-4,157.80-1,310.44

Finding the Fourth Proportional to 2,771.68, 4,157.80 and 1,310.44

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Solution

The fourth proportional to 2,771.68, 4,157.80 and 1,310.44 is: 1,965.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,771.68 : 4,157.80 = 1,310.44 : x
  2. Step 2: Convert to fraction form
    2,771.68/4,157.80 = 1,310.44/x
  3. Step 3: Cross multiply
    2,771.68x = 4,157.80 × 1,310.44
  4. Step 4: Simplify right side
    2,771.68x = 5,448,547.43
  5. Step 5: Solve for x
    x = 5,448,547.43/2,771.68
  6. Step 6: Final answer
    x = 1,965.79

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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.