Home / 7,768.39-11,654.30-2,838.02

Finding the Fourth Proportional to 7,768.39, 11,654.30 and 2,838.02

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Solution

The fourth proportional to 7,768.39, 11,654.30 and 2,838.02 is: 4,257.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,768.39 : 11,654.30 = 2,838.02 : x
  2. Step 2: Convert to fraction form
    7,768.39/11,654.30 = 2,838.02/x
  3. Step 3: Cross multiply
    7,768.39x = 11,654.30 × 2,838.02
  4. Step 4: Simplify right side
    7,768.39x = 33,075,136.49
  5. Step 5: Solve for x
    x = 33,075,136.49/7,768.39
  6. Step 6: Final answer
    x = 4,257.66

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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.