Home / 2,382.21-3,279.69-1,634.58

Finding the Fourth Proportional to 2,382.21, 3,279.69 and 1,634.58

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Solution

The fourth proportional to 2,382.21, 3,279.69 and 1,634.58 is: 2,250.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,382.21 : 3,279.69 = 1,634.58 : x
  2. Step 2: Convert to fraction form
    2,382.21/3,279.69 = 1,634.58/x
  3. Step 3: Cross multiply
    2,382.21x = 3,279.69 × 1,634.58
  4. Step 4: Simplify right side
    2,382.21x = 5,360,915.68
  5. Step 5: Solve for x
    x = 5,360,915.68/2,382.21
  6. Step 6: Final answer
    x = 2,250.40

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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.