Home / 5,450.19-8,176.50-1,987.44

Finding the Fourth Proportional to 5,450.19, 8,176.50 and 1,987.44

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Solution

The fourth proportional to 5,450.19, 8,176.50 and 1,987.44 is: 2,981.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,450.19 : 8,176.50 = 1,987.44 : x
  2. Step 2: Convert to fraction form
    5,450.19/8,176.50 = 1,987.44/x
  3. Step 3: Cross multiply
    5,450.19x = 8,176.50 × 1,987.44
  4. Step 4: Simplify right side
    5,450.19x = 16,250,303.16
  5. Step 5: Solve for x
    x = 16,250,303.16/5,450.19
  6. Step 6: Final answer
    x = 2,981.60

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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.