Home / 3,131.35-4,317.53-2,012.33

Finding the Fourth Proportional to 3,131.35, 4,317.53 and 2,012.33

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Solution

The fourth proportional to 3,131.35, 4,317.53 and 2,012.33 is: 2,774.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,131.35 : 4,317.53 = 2,012.33 : x
  2. Step 2: Convert to fraction form
    3,131.35/4,317.53 = 2,012.33/x
  3. Step 3: Cross multiply
    3,131.35x = 4,317.53 × 2,012.33
  4. Step 4: Simplify right side
    3,131.35x = 8,688,295.14
  5. Step 5: Solve for x
    x = 8,688,295.14/3,131.35
  6. Step 6: Final answer
    x = 2,774.62

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.