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Finding the Fourth Proportional to 5,328.08, 7,986.12 and 2,550.80

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Solution

The fourth proportional to 5,328.08, 7,986.12 and 2,550.80 is: 3,823.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,328.08 : 7,986.12 = 2,550.80 : x
  2. Step 2: Convert to fraction form
    5,328.08/7,986.12 = 2,550.80/x
  3. Step 3: Cross multiply
    5,328.08x = 7,986.12 × 2,550.80
  4. Step 4: Simplify right side
    5,328.08x = 20,370,994.90
  5. Step 5: Solve for x
    x = 20,370,994.90/5,328.08
  6. Step 6: Final answer
    x = 3,823.33

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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.