Home / 5,487.80-8,231.70-3,021.35

Finding the Fourth Proportional to 5,487.80, 8,231.70 and 3,021.35

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Solution

The fourth proportional to 5,487.80, 8,231.70 and 3,021.35 is: 4,532.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,487.80 : 8,231.70 = 3,021.35 : x
  2. Step 2: Convert to fraction form
    5,487.80/8,231.70 = 3,021.35/x
  3. Step 3: Cross multiply
    5,487.80x = 8,231.70 × 3,021.35
  4. Step 4: Simplify right side
    5,487.80x = 24,870,846.80
  5. Step 5: Solve for x
    x = 24,870,846.80/5,487.80
  6. Step 6: Final answer
    x = 4,532.03

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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.