Home / 3,112.51-4,668.74-1,263.61

Finding the Fourth Proportional to 3,112.51, 4,668.74 and 1,263.61

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Solution

The fourth proportional to 3,112.51, 4,668.74 and 1,263.61 is: 1,895.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,112.51 : 4,668.74 = 1,263.61 : x
  2. Step 2: Convert to fraction form
    3,112.51/4,668.74 = 1,263.61/x
  3. Step 3: Cross multiply
    3,112.51x = 4,668.74 × 1,263.61
  4. Step 4: Simplify right side
    3,112.51x = 5,899,451.65
  5. Step 5: Solve for x
    x = 5,899,451.65/3,112.51
  6. Step 6: Final answer
    x = 1,895.40

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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.