Home / 5,118.48-7,678.26-2,197.08

Finding the Fourth Proportional to 5,118.48, 7,678.26 and 2,197.08

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Solution

The fourth proportional to 5,118.48, 7,678.26 and 2,197.08 is: 3,295.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,118.48 : 7,678.26 = 2,197.08 : x
  2. Step 2: Convert to fraction form
    5,118.48/7,678.26 = 2,197.08/x
  3. Step 3: Cross multiply
    5,118.48x = 7,678.26 × 2,197.08
  4. Step 4: Simplify right side
    5,118.48x = 16,869,751.48
  5. Step 5: Solve for x
    x = 16,869,751.48/5,118.48
  6. Step 6: Final answer
    x = 3,295.85

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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.