Home / 3,739.64-5,161.30-2,853.76

Finding the Fourth Proportional to 3,739.64, 5,161.30 and 2,853.76

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Solution

The fourth proportional to 3,739.64, 5,161.30 and 2,853.76 is: 3,938.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,739.64 : 5,161.30 = 2,853.76 : x
  2. Step 2: Convert to fraction form
    3,739.64/5,161.30 = 2,853.76/x
  3. Step 3: Cross multiply
    3,739.64x = 5,161.30 × 2,853.76
  4. Step 4: Simplify right side
    3,739.64x = 14,729,111.49
  5. Step 5: Solve for x
    x = 14,729,111.49/3,739.64
  6. Step 6: Final answer
    x = 3,938.64

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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.