Home / 2,788.21-4,175.48-1,962.62

Finding the Fourth Proportional to 2,788.21, 4,175.48 and 1,962.62

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Solution

The fourth proportional to 2,788.21, 4,175.48 and 1,962.62 is: 2,939.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,788.21 : 4,175.48 = 1,962.62 : x
  2. Step 2: Convert to fraction form
    2,788.21/4,175.48 = 1,962.62/x
  3. Step 3: Cross multiply
    2,788.21x = 4,175.48 × 1,962.62
  4. Step 4: Simplify right side
    2,788.21x = 8,194,880.56
  5. Step 5: Solve for x
    x = 8,194,880.56/2,788.21
  6. Step 6: Final answer
    x = 2,939.12

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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.