Home / 7,690.67-11,528.45-2,759.39

Finding the Fourth Proportional to 7,690.67, 11,528.45 and 2,759.39

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Solution

The fourth proportional to 7,690.67, 11,528.45 and 2,759.39 is: 4,136.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,690.67 : 11,528.45 = 2,759.39 : x
  2. Step 2: Convert to fraction form
    7,690.67/11,528.45 = 2,759.39/x
  3. Step 3: Cross multiply
    7,690.67x = 11,528.45 × 2,759.39
  4. Step 4: Simplify right side
    7,690.67x = 31,811,475.85
  5. Step 5: Solve for x
    x = 31,811,475.85/7,690.67
  6. Step 6: Final answer
    x = 4,136.37

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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.