Home / 5,450.35-8,176.73-1,987.60

Finding the Fourth Proportional to 5,450.35, 8,176.73 and 1,987.60

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Solution

The fourth proportional to 5,450.35, 8,176.73 and 1,987.60 is: 2,981.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,450.35 : 8,176.73 = 1,987.60 : x
  2. Step 2: Convert to fraction form
    5,450.35/8,176.73 = 1,987.60/x
  3. Step 3: Cross multiply
    5,450.35x = 8,176.73 × 1,987.60
  4. Step 4: Simplify right side
    5,450.35x = 16,252,053.08
  5. Step 5: Solve for x
    x = 16,252,053.08/5,450.35
  6. Step 6: Final answer
    x = 2,981.84

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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.