Home / 3,814.85-5,720.46-2,478.48

Finding the Fourth Proportional to 3,814.85, 5,720.46 and 2,478.48

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Solution

The fourth proportional to 3,814.85, 5,720.46 and 2,478.48 is: 3,716.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,814.85 : 5,720.46 = 2,478.48 : x
  2. Step 2: Convert to fraction form
    3,814.85/5,720.46 = 2,478.48/x
  3. Step 3: Cross multiply
    3,814.85x = 5,720.46 × 2,478.48
  4. Step 4: Simplify right side
    3,814.85x = 14,178,045.70
  5. Step 5: Solve for x
    x = 14,178,045.70/3,814.85
  6. Step 6: Final answer
    x = 3,716.55

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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.