Home / 5,450.88-8,175.60-1,555.64

Finding the Fourth Proportional to 5,450.88, 8,175.60 and 1,555.64

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Solution

The fourth proportional to 5,450.88, 8,175.60 and 1,555.64 is: 2,333.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,450.88 : 8,175.60 = 1,555.64 : x
  2. Step 2: Convert to fraction form
    5,450.88/8,175.60 = 1,555.64/x
  3. Step 3: Cross multiply
    5,450.88x = 8,175.60 × 1,555.64
  4. Step 4: Simplify right side
    5,450.88x = 12,718,290.38
  5. Step 5: Solve for x
    x = 12,718,290.38/5,450.88
  6. Step 6: Final answer
    x = 2,333.25

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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.