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Finding the Fourth Proportional to 7,823.69, 11,735.54 and 1,900.58

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Solution

The fourth proportional to 7,823.69, 11,735.54 and 1,900.58 is: 2,850.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,823.69 : 11,735.54 = 1,900.58 : x
  2. Step 2: Convert to fraction form
    7,823.69/11,735.54 = 1,900.58/x
  3. Step 3: Cross multiply
    7,823.69x = 11,735.54 × 1,900.58
  4. Step 4: Simplify right side
    7,823.69x = 22,304,264.43
  5. Step 5: Solve for x
    x = 22,304,264.43/7,823.69
  6. Step 6: Final answer
    x = 2,850.86

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Similar ratio
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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.