Home / 2,183.41-3,012.93-1,287.22

Finding the Fourth Proportional to 2,183.41, 3,012.93 and 1,287.22

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Solution

The fourth proportional to 2,183.41, 3,012.93 and 1,287.22 is: 1,776.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,183.41 : 3,012.93 = 1,287.22 : x
  2. Step 2: Convert to fraction form
    2,183.41/3,012.93 = 1,287.22/x
  3. Step 3: Cross multiply
    2,183.41x = 3,012.93 × 1,287.22
  4. Step 4: Simplify right side
    2,183.41x = 3,878,303.75
  5. Step 5: Solve for x
    x = 3,878,303.75/2,183.41
  6. Step 6: Final answer
    x = 1,776.26

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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.