Home / 3,378.62-4,662.68-1,886.55

Finding the Fourth Proportional to 3,378.62, 4,662.68 and 1,886.55

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Solution

The fourth proportional to 3,378.62, 4,662.68 and 1,886.55 is: 2,603.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,378.62 : 4,662.68 = 1,886.55 : x
  2. Step 2: Convert to fraction form
    3,378.62/4,662.68 = 1,886.55/x
  3. Step 3: Cross multiply
    3,378.62x = 4,662.68 × 1,886.55
  4. Step 4: Simplify right side
    3,378.62x = 8,796,378.95
  5. Step 5: Solve for x
    x = 8,796,378.95/3,378.62
  6. Step 6: Final answer
    x = 2,603.54

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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.