Home / 6,511.28-9,765.89-1,830.78

Finding the Fourth Proportional to 6,511.28, 9,765.89 and 1,830.78

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Solution

The fourth proportional to 6,511.28, 9,765.89 and 1,830.78 is: 2,745.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,511.28 : 9,765.89 = 1,830.78 : x
  2. Step 2: Convert to fraction form
    6,511.28/9,765.89 = 1,830.78/x
  3. Step 3: Cross multiply
    6,511.28x = 9,765.89 × 1,830.78
  4. Step 4: Simplify right side
    6,511.28x = 17,879,186.94
  5. Step 5: Solve for x
    x = 17,879,186.94/6,511.28
  6. Step 6: Final answer
    x = 2,745.88

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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.