Home / 3,958.02-5,461.68-2,189.38

Finding the Fourth Proportional to 3,958.02, 5,461.68 and 2,189.38

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Solution

The fourth proportional to 3,958.02, 5,461.68 and 2,189.38 is: 3,021.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,958.02 : 5,461.68 = 2,189.38 : x
  2. Step 2: Convert to fraction form
    3,958.02/5,461.68 = 2,189.38/x
  3. Step 3: Cross multiply
    3,958.02x = 5,461.68 × 2,189.38
  4. Step 4: Simplify right side
    3,958.02x = 11,957,692.96
  5. Step 5: Solve for x
    x = 11,957,692.96/3,958.02
  6. Step 6: Final answer
    x = 3,021.13

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.