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Finding the Fourth Proportional to 3,149.73, 4,719.95 and 2,803.73

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Solution

The fourth proportional to 3,149.73, 4,719.95 and 2,803.73 is: 4,201.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,149.73 : 4,719.95 = 2,803.73 : x
  2. Step 2: Convert to fraction form
    3,149.73/4,719.95 = 2,803.73/x
  3. Step 3: Cross multiply
    3,149.73x = 4,719.95 × 2,803.73
  4. Step 4: Simplify right side
    3,149.73x = 13,233,427.80
  5. Step 5: Solve for x
    x = 13,233,427.80/3,149.73
  6. Step 6: Final answer
    x = 4,201.45

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.