Home / 3,005.96-4,147.86-2,012.36

Finding the Fourth Proportional to 3,005.96, 4,147.86 and 2,012.36

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Solution

The fourth proportional to 3,005.96, 4,147.86 and 2,012.36 is: 2,776.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,005.96 : 4,147.86 = 2,012.36 : x
  2. Step 2: Convert to fraction form
    3,005.96/4,147.86 = 2,012.36/x
  3. Step 3: Cross multiply
    3,005.96x = 4,147.86 × 2,012.36
  4. Step 4: Simplify right side
    3,005.96x = 8,346,987.55
  5. Step 5: Solve for x
    x = 8,346,987.55/3,005.96
  6. Step 6: Final answer
    x = 2,776.81

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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.