Home / 3,081.02-4,251.81-1,683.74

Finding the Fourth Proportional to 3,081.02, 4,251.81 and 1,683.74

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Solution

The fourth proportional to 3,081.02, 4,251.81 and 1,683.74 is: 2,323.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,081.02 : 4,251.81 = 1,683.74 : x
  2. Step 2: Convert to fraction form
    3,081.02/4,251.81 = 1,683.74/x
  3. Step 3: Cross multiply
    3,081.02x = 4,251.81 × 1,683.74
  4. Step 4: Simplify right side
    3,081.02x = 7,158,942.57
  5. Step 5: Solve for x
    x = 7,158,942.57/3,081.02
  6. Step 6: Final answer
    x = 2,323.56

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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.