Home / 4,311.64-6,468.09-1,388.98

Finding the Fourth Proportional to 4,311.64, 6,468.09 and 1,388.98

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Solution

The fourth proportional to 4,311.64, 6,468.09 and 1,388.98 is: 2,083.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,311.64 : 6,468.09 = 1,388.98 : x
  2. Step 2: Convert to fraction form
    4,311.64/6,468.09 = 1,388.98/x
  3. Step 3: Cross multiply
    4,311.64x = 6,468.09 × 1,388.98
  4. Step 4: Simplify right side
    4,311.64x = 8,984,047.65
  5. Step 5: Solve for x
    x = 8,984,047.65/4,311.64
  6. Step 6: Final answer
    x = 2,083.67

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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.