Home / 3,739.40-5,160.32-2,060.80

Finding the Fourth Proportional to 3,739.40, 5,160.32 and 2,060.80

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Solution

The fourth proportional to 3,739.40, 5,160.32 and 2,060.80 is: 2,843.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,739.40 : 5,160.32 = 2,060.80 : x
  2. Step 2: Convert to fraction form
    3,739.40/5,160.32 = 2,060.80/x
  3. Step 3: Cross multiply
    3,739.40x = 5,160.32 × 2,060.80
  4. Step 4: Simplify right side
    3,739.40x = 10,634,387.46
  5. Step 5: Solve for x
    x = 10,634,387.46/3,739.40
  6. Step 6: Final answer
    x = 2,843.88

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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.