Home / 3,418.12-4,718.82-2,738.53

Finding the Fourth Proportional to 3,418.12, 4,718.82 and 2,738.53

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Solution

The fourth proportional to 3,418.12, 4,718.82 and 2,738.53 is: 3,780.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,418.12 : 4,718.82 = 2,738.53 : x
  2. Step 2: Convert to fraction form
    3,418.12/4,718.82 = 2,738.53/x
  3. Step 3: Cross multiply
    3,418.12x = 4,718.82 × 2,738.53
  4. Step 4: Simplify right side
    3,418.12x = 12,922,630.13
  5. Step 5: Solve for x
    x = 12,922,630.13/3,418.12
  6. Step 6: Final answer
    x = 3,780.63

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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.