Home / 5,518.80-8,281.63-2,231.92

Finding the Fourth Proportional to 5,518.80, 8,281.63 and 2,231.92

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Solution

The fourth proportional to 5,518.80, 8,281.63 and 2,231.92 is: 3,349.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,518.80 : 8,281.63 = 2,231.92 : x
  2. Step 2: Convert to fraction form
    5,518.80/8,281.63 = 2,231.92/x
  3. Step 3: Cross multiply
    5,518.80x = 8,281.63 × 2,231.92
  4. Step 4: Simplify right side
    5,518.80x = 18,483,936.22
  5. Step 5: Solve for x
    x = 18,483,936.22/5,518.80
  6. Step 6: Final answer
    x = 3,349.27

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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.