Home / 3,404.85-5,118.08-3,145.65

Finding the Fourth Proportional to 3,404.85, 5,118.08 and 3,145.65

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Solution

The fourth proportional to 3,404.85, 5,118.08 and 3,145.65 is: 4,728.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,404.85 : 5,118.08 = 3,145.65 : x
  2. Step 2: Convert to fraction form
    3,404.85/5,118.08 = 3,145.65/x
  3. Step 3: Cross multiply
    3,404.85x = 5,118.08 × 3,145.65
  4. Step 4: Simplify right side
    3,404.85x = 16,099,672.62
  5. Step 5: Solve for x
    x = 16,099,672.62/3,404.85
  6. Step 6: Final answer
    x = 4,728.45

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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.