Home / 6,311.78-9,467.28-2,800.76

Finding the Fourth Proportional to 6,311.78, 9,467.28 and 2,800.76

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Solution

The fourth proportional to 6,311.78, 9,467.28 and 2,800.76 is: 4,200.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,311.78 : 9,467.28 = 2,800.76 : x
  2. Step 2: Convert to fraction form
    6,311.78/9,467.28 = 2,800.76/x
  3. Step 3: Cross multiply
    6,311.78x = 9,467.28 × 2,800.76
  4. Step 4: Simplify right side
    6,311.78x = 26,515,602.80
  5. Step 5: Solve for x
    x = 26,515,602.80/6,311.78
  6. Step 6: Final answer
    x = 4,200.97

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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.