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Finding the Fourth Proportional to 6,519.53, 9,779.87 and 1,839.57

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Solution

The fourth proportional to 6,519.53, 9,779.87 and 1,839.57 is: 2,759.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,519.53 : 9,779.87 = 1,839.57 : x
  2. Step 2: Convert to fraction form
    6,519.53/9,779.87 = 1,839.57/x
  3. Step 3: Cross multiply
    6,519.53x = 9,779.87 × 1,839.57
  4. Step 4: Simplify right side
    6,519.53x = 17,990,746.26
  5. Step 5: Solve for x
    x = 17,990,746.26/6,519.53
  6. Step 6: Final answer
    x = 2,759.52

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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.