Home / 6,519.75-9,779.11-1,839.57

Finding the Fourth Proportional to 6,519.75, 9,779.11 and 1,839.57

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Solution

The fourth proportional to 6,519.75, 9,779.11 and 1,839.57 is: 2,759.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,519.75 : 9,779.11 = 1,839.57 : x
  2. Step 2: Convert to fraction form
    6,519.75/9,779.11 = 1,839.57/x
  3. Step 3: Cross multiply
    6,519.75x = 9,779.11 × 1,839.57
  4. Step 4: Simplify right side
    6,519.75x = 17,989,357.38
  5. Step 5: Solve for x
    x = 17,989,357.38/6,519.75
  6. Step 6: Final answer
    x = 2,759.21

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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.