Home / 3,958.08-5,461.95-2,189.58

Finding the Fourth Proportional to 3,958.08, 5,461.95 and 2,189.58

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Solution

The fourth proportional to 3,958.08, 5,461.95 and 2,189.58 is: 3,021.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,958.08 : 5,461.95 = 2,189.58 : x
  2. Step 2: Convert to fraction form
    3,958.08/5,461.95 = 2,189.58/x
  3. Step 3: Cross multiply
    3,958.08x = 5,461.95 × 2,189.58
  4. Step 4: Simplify right side
    3,958.08x = 11,959,376.48
  5. Step 5: Solve for x
    x = 11,959,376.48/3,958.08
  6. Step 6: Final answer
    x = 3,021.51

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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.