Home / 3,112.12-4,668.14-1,263.22

Finding the Fourth Proportional to 3,112.12, 4,668.14 and 1,263.22

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Solution

The fourth proportional to 3,112.12, 4,668.14 and 1,263.22 is: 1,894.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,112.12 : 4,668.14 = 1,263.22 : x
  2. Step 2: Convert to fraction form
    3,112.12/4,668.14 = 1,263.22/x
  3. Step 3: Cross multiply
    3,112.12x = 4,668.14 × 1,263.22
  4. Step 4: Simplify right side
    3,112.12x = 5,896,887.81
  5. Step 5: Solve for x
    x = 5,896,887.81/3,112.12
  6. Step 6: Final answer
    x = 1,894.81

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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.