Home / 3,115.12-4,668.99-1,263.73

Finding the Fourth Proportional to 3,115.12, 4,668.99 and 1,263.73

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Solution

The fourth proportional to 3,115.12, 4,668.99 and 1,263.73 is: 1,894.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,115.12 : 4,668.99 = 1,263.73 : x
  2. Step 2: Convert to fraction form
    3,115.12/4,668.99 = 1,263.73/x
  3. Step 3: Cross multiply
    3,115.12x = 4,668.99 × 1,263.73
  4. Step 4: Simplify right side
    3,115.12x = 5,900,342.73
  5. Step 5: Solve for x
    x = 5,900,342.73/3,115.12
  6. Step 6: Final answer
    x = 1,894.10

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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.