Home / 2,738.85-3,781.32-2,173.99

Finding the Fourth Proportional to 2,738.85, 3,781.32 and 2,173.99

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Solution

The fourth proportional to 2,738.85, 3,781.32 and 2,173.99 is: 3,001.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,738.85 : 3,781.32 = 2,173.99 : x
  2. Step 2: Convert to fraction form
    2,738.85/3,781.32 = 2,173.99/x
  3. Step 3: Cross multiply
    2,738.85x = 3,781.32 × 2,173.99
  4. Step 4: Simplify right side
    2,738.85x = 8,220,551.87
  5. Step 5: Solve for x
    x = 8,220,551.87/2,738.85
  6. Step 6: Final answer
    x = 3,001.46

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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.