Home / 3,102.02-4,280.83-1,685.73

Finding the Fourth Proportional to 3,102.02, 4,280.83 and 1,685.73

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Solution

The fourth proportional to 3,102.02, 4,280.83 and 1,685.73 is: 2,326.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,102.02 : 4,280.83 = 1,685.73 : x
  2. Step 2: Convert to fraction form
    3,102.02/4,280.83 = 1,685.73/x
  3. Step 3: Cross multiply
    3,102.02x = 4,280.83 × 1,685.73
  4. Step 4: Simplify right side
    3,102.02x = 7,216,323.56
  5. Step 5: Solve for x
    x = 7,216,323.56/3,102.02
  6. Step 6: Final answer
    x = 2,326.33

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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.