Home / 5,489.16-8,234.48-1,790.10

Finding the Fourth Proportional to 5,489.16, 8,234.48 and 1,790.10

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Solution

The fourth proportional to 5,489.16, 8,234.48 and 1,790.10 is: 2,685.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,489.16 : 8,234.48 = 1,790.10 : x
  2. Step 2: Convert to fraction form
    5,489.16/8,234.48 = 1,790.10/x
  3. Step 3: Cross multiply
    5,489.16x = 8,234.48 × 1,790.10
  4. Step 4: Simplify right side
    5,489.16x = 14,740,542.65
  5. Step 5: Solve for x
    x = 14,740,542.65/5,489.16
  6. Step 6: Final answer
    x = 2,685.39

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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.