Home / 5,409.70-8,114.55-3,105.70

Finding the Fourth Proportional to 5,409.70, 8,114.55 and 3,105.70

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Solution

The fourth proportional to 5,409.70, 8,114.55 and 3,105.70 is: 4,658.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,409.70 : 8,114.55 = 3,105.70 : x
  2. Step 2: Convert to fraction form
    5,409.70/8,114.55 = 3,105.70/x
  3. Step 3: Cross multiply
    5,409.70x = 8,114.55 × 3,105.70
  4. Step 4: Simplify right side
    5,409.70x = 25,201,357.94
  5. Step 5: Solve for x
    x = 25,201,357.94/5,409.70
  6. Step 6: Final answer
    x = 4,658.55

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Similar ratio
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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.