Home / 3,803.92-5,242.13-2,739.80

Finding the Fourth Proportional to 3,803.92, 5,242.13 and 2,739.80

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Solution

The fourth proportional to 3,803.92, 5,242.13 and 2,739.80 is: 3,775.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,803.92 : 5,242.13 = 2,739.80 : x
  2. Step 2: Convert to fraction form
    3,803.92/5,242.13 = 2,739.80/x
  3. Step 3: Cross multiply
    3,803.92x = 5,242.13 × 2,739.80
  4. Step 4: Simplify right side
    3,803.92x = 14,362,387.77
  5. Step 5: Solve for x
    x = 14,362,387.77/3,803.92
  6. Step 6: Final answer
    x = 3,775.68

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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.