Home / 4,129.25-6,178.34-2,457.21

Finding the Fourth Proportional to 4,129.25, 6,178.34 and 2,457.21

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Solution

The fourth proportional to 4,129.25, 6,178.34 and 2,457.21 is: 3,676.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,129.25 : 6,178.34 = 2,457.21 : x
  2. Step 2: Convert to fraction form
    4,129.25/6,178.34 = 2,457.21/x
  3. Step 3: Cross multiply
    4,129.25x = 6,178.34 × 2,457.21
  4. Step 4: Simplify right side
    4,129.25x = 15,181,508.14
  5. Step 5: Solve for x
    x = 15,181,508.14/4,129.25
  6. Step 6: Final answer
    x = 3,676.58

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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.