Home / 3,112.30-4,668.66-1,263.40

Finding the Fourth Proportional to 3,112.30, 4,668.66 and 1,263.40

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Solution

The fourth proportional to 3,112.30, 4,668.66 and 1,263.40 is: 1,895.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,112.30 : 4,668.66 = 1,263.40 : x
  2. Step 2: Convert to fraction form
    3,112.30/4,668.66 = 1,263.40/x
  3. Step 3: Cross multiply
    3,112.30x = 4,668.66 × 1,263.40
  4. Step 4: Simplify right side
    3,112.30x = 5,898,385.04
  5. Step 5: Solve for x
    x = 5,898,385.04/3,112.30
  6. Step 6: Final answer
    x = 1,895.19

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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.