Home / 3,905.34-5,858.19-2,172.66

Finding the Fourth Proportional to 3,905.34, 5,858.19 and 2,172.66

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Solution

The fourth proportional to 3,905.34, 5,858.19 and 2,172.66 is: 3,259.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,905.34 : 5,858.19 = 2,172.66 : x
  2. Step 2: Convert to fraction form
    3,905.34/5,858.19 = 2,172.66/x
  3. Step 3: Cross multiply
    3,905.34x = 5,858.19 × 2,172.66
  4. Step 4: Simplify right side
    3,905.34x = 12,727,855.09
  5. Step 5: Solve for x
    x = 12,727,855.09/3,905.34
  6. Step 6: Final answer
    x = 3,259.09

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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.