Home / 6,396.78-9,595.83-1,779.78

Finding the Fourth Proportional to 6,396.78, 9,595.83 and 1,779.78

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Solution

The fourth proportional to 6,396.78, 9,595.83 and 1,779.78 is: 2,669.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,396.78 : 9,595.83 = 1,779.78 : x
  2. Step 2: Convert to fraction form
    6,396.78/9,595.83 = 1,779.78/x
  3. Step 3: Cross multiply
    6,396.78x = 9,595.83 × 1,779.78
  4. Step 4: Simplify right side
    6,396.78x = 17,078,466.32
  5. Step 5: Solve for x
    x = 17,078,466.32/6,396.78
  6. Step 6: Final answer
    x = 2,669.85

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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.