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Finding the Fourth Proportional to 2,738.06, 3,778.14 and 1,559.06

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Solution

The fourth proportional to 2,738.06, 3,778.14 and 1,559.06 is: 2,151.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,738.06 : 3,778.14 = 1,559.06 : x
  2. Step 2: Convert to fraction form
    2,738.06/3,778.14 = 1,559.06/x
  3. Step 3: Cross multiply
    2,738.06x = 3,778.14 × 1,559.06
  4. Step 4: Simplify right side
    2,738.06x = 5,890,346.95
  5. Step 5: Solve for x
    x = 5,890,346.95/2,738.06
  6. Step 6: Final answer
    x = 2,151.28

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.