Home / 3,709.44-5,105.28-2,659.20

Finding the Fourth Proportional to 3,709.44, 5,105.28 and 2,659.20

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Solution

The fourth proportional to 3,709.44, 5,105.28 and 2,659.20 is: 3,659.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,709.44 : 5,105.28 = 2,659.20 : x
  2. Step 2: Convert to fraction form
    3,709.44/5,105.28 = 2,659.20/x
  3. Step 3: Cross multiply
    3,709.44x = 5,105.28 × 2,659.20
  4. Step 4: Simplify right side
    3,709.44x = 13,575,960.58
  5. Step 5: Solve for x
    x = 13,575,960.58/3,709.44
  6. Step 6: Final answer
    x = 3,659.84

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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.