Home / 2,418.22-3,620.97-1,947.17

Finding the Fourth Proportional to 2,418.22, 3,620.97 and 1,947.17

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Solution

The fourth proportional to 2,418.22, 3,620.97 and 1,947.17 is: 2,915.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,418.22 : 3,620.97 = 1,947.17 : x
  2. Step 2: Convert to fraction form
    2,418.22/3,620.97 = 1,947.17/x
  3. Step 3: Cross multiply
    2,418.22x = 3,620.97 × 1,947.17
  4. Step 4: Simplify right side
    2,418.22x = 7,050,653.21
  5. Step 5: Solve for x
    x = 7,050,653.21/2,418.22
  6. Step 6: Final answer
    x = 2,915.64

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.