Home / 3,905.60-5,858.46-1,439.15

Finding the Fourth Proportional to 3,905.60, 5,858.46 and 1,439.15

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Solution

The fourth proportional to 3,905.60, 5,858.46 and 1,439.15 is: 2,158.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,905.60 : 5,858.46 = 1,439.15 : x
  2. Step 2: Convert to fraction form
    3,905.60/5,858.46 = 1,439.15/x
  3. Step 3: Cross multiply
    3,905.60x = 5,858.46 × 1,439.15
  4. Step 4: Simplify right side
    3,905.60x = 8,431,173.42
  5. Step 5: Solve for x
    x = 8,431,173.42/3,905.60
  6. Step 6: Final answer
    x = 2,158.74

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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.