Home / 3,803.85-5,247.75-2,311.53

Finding the Fourth Proportional to 3,803.85, 5,247.75 and 2,311.53

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Solution

The fourth proportional to 3,803.85, 5,247.75 and 2,311.53 is: 3,188.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,803.85 : 5,247.75 = 2,311.53 : x
  2. Step 2: Convert to fraction form
    3,803.85/5,247.75 = 2,311.53/x
  3. Step 3: Cross multiply
    3,803.85x = 5,247.75 × 2,311.53
  4. Step 4: Simplify right side
    3,803.85x = 12,130,331.56
  5. Step 5: Solve for x
    x = 12,130,331.56/3,803.85
  6. Step 6: Final answer
    x = 3,188.96

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.