Home / 3,457.27-5,178.21-1,722.25

Finding the Fourth Proportional to 3,457.27, 5,178.21 and 1,722.25

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Solution

The fourth proportional to 3,457.27, 5,178.21 and 1,722.25 is: 2,579.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,457.27 : 5,178.21 = 1,722.25 : x
  2. Step 2: Convert to fraction form
    3,457.27/5,178.21 = 1,722.25/x
  3. Step 3: Cross multiply
    3,457.27x = 5,178.21 × 1,722.25
  4. Step 4: Simplify right side
    3,457.27x = 8,918,172.17
  5. Step 5: Solve for x
    x = 8,918,172.17/3,457.27
  6. Step 6: Final answer
    x = 2,579.54

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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.