Home / 3,439.21-5,158.54-1,218.26

Finding the Fourth Proportional to 3,439.21, 5,158.54 and 1,218.26

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Solution

The fourth proportional to 3,439.21, 5,158.54 and 1,218.26 is: 1,827.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,439.21 : 5,158.54 = 1,218.26 : x
  2. Step 2: Convert to fraction form
    3,439.21/5,158.54 = 1,218.26/x
  3. Step 3: Cross multiply
    3,439.21x = 5,158.54 × 1,218.26
  4. Step 4: Simplify right side
    3,439.21x = 6,284,442.94
  5. Step 5: Solve for x
    x = 6,284,442.94/3,439.21
  6. Step 6: Final answer
    x = 1,827.29

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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.