Home / 6,764.63-10,142.89-2,811.12

Finding the Fourth Proportional to 6,764.63, 10,142.89 and 2,811.12

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Solution

The fourth proportional to 6,764.63, 10,142.89 and 2,811.12 is: 4,214.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,764.63 : 10,142.89 = 2,811.12 : x
  2. Step 2: Convert to fraction form
    6,764.63/10,142.89 = 2,811.12/x
  3. Step 3: Cross multiply
    6,764.63x = 10,142.89 × 2,811.12
  4. Step 4: Simplify right side
    6,764.63x = 28,512,835.87
  5. Step 5: Solve for x
    x = 28,512,835.87/6,764.63
  6. Step 6: Final answer
    x = 4,214.99

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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.