Home / 3,112.99-4,668.36-1,357.90

Finding the Fourth Proportional to 3,112.99, 4,668.36 and 1,357.90

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Solution

The fourth proportional to 3,112.99, 4,668.36 and 1,357.90 is: 2,036.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,112.99 : 4,668.36 = 1,357.90 : x
  2. Step 2: Convert to fraction form
    3,112.99/4,668.36 = 1,357.90/x
  3. Step 3: Cross multiply
    3,112.99x = 4,668.36 × 1,357.90
  4. Step 4: Simplify right side
    3,112.99x = 6,339,166.04
  5. Step 5: Solve for x
    x = 6,339,166.04/3,112.99
  6. Step 6: Final answer
    x = 2,036.36

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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.