Home / 3,923.58-5,899.40-3,619.20

Finding the Fourth Proportional to 3,923.58, 5,899.40 and 3,619.20

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Solution

The fourth proportional to 3,923.58, 5,899.40 and 3,619.20 is: 5,441.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,923.58 : 5,899.40 = 3,619.20 : x
  2. Step 2: Convert to fraction form
    3,923.58/5,899.40 = 3,619.20/x
  3. Step 3: Cross multiply
    3,923.58x = 5,899.40 × 3,619.20
  4. Step 4: Simplify right side
    3,923.58x = 21,351,108.48
  5. Step 5: Solve for x
    x = 21,351,108.48/3,923.58
  6. Step 6: Final answer
    x = 5,441.74

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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.