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Finding the Fourth Proportional to 2,805.76, 4,208.77 and 1,074.26

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Solution

The fourth proportional to 2,805.76, 4,208.77 and 1,074.26 is: 1,611.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,805.76 : 4,208.77 = 1,074.26 : x
  2. Step 2: Convert to fraction form
    2,805.76/4,208.77 = 1,074.26/x
  3. Step 3: Cross multiply
    2,805.76x = 4,208.77 × 1,074.26
  4. Step 4: Simplify right side
    2,805.76x = 4,521,313.26
  5. Step 5: Solve for x
    x = 4,521,313.26/2,805.76
  6. Step 6: Final answer
    x = 1,611.44

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1.5x scale

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.