Home / 3,439.83-5,157.21-2,782.53

Finding the Fourth Proportional to 3,439.83, 5,157.21 and 2,782.53

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Solution

The fourth proportional to 3,439.83, 5,157.21 and 2,782.53 is: 4,171.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,439.83 : 5,157.21 = 2,782.53 : x
  2. Step 2: Convert to fraction form
    3,439.83/5,157.21 = 2,782.53/x
  3. Step 3: Cross multiply
    3,439.83x = 5,157.21 × 2,782.53
  4. Step 4: Simplify right side
    3,439.83x = 14,350,091.54
  5. Step 5: Solve for x
    x = 14,350,091.54/3,439.83
  6. Step 6: Final answer
    x = 4,171.74

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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.