Home / 2,738.18-3,780.41-1,898.57

Finding the Fourth Proportional to 2,738.18, 3,780.41 and 1,898.57

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Solution

The fourth proportional to 2,738.18, 3,780.41 and 1,898.57 is: 2,621.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,738.18 : 3,780.41 = 1,898.57 : x
  2. Step 2: Convert to fraction form
    2,738.18/3,780.41 = 1,898.57/x
  3. Step 3: Cross multiply
    2,738.18x = 3,780.41 × 1,898.57
  4. Step 4: Simplify right side
    2,738.18x = 7,177,344.62
  5. Step 5: Solve for x
    x = 7,177,344.62/2,738.18
  6. Step 6: Final answer
    x = 2,621.21

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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.