Home / 3,966.85-5,474.90-3,021.13

Finding the Fourth Proportional to 3,966.85, 5,474.90 and 3,021.13

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Solution

The fourth proportional to 3,966.85, 5,474.90 and 3,021.13 is: 4,169.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,966.85 : 5,474.90 = 3,021.13 : x
  2. Step 2: Convert to fraction form
    3,966.85/5,474.90 = 3,021.13/x
  3. Step 3: Cross multiply
    3,966.85x = 5,474.90 × 3,021.13
  4. Step 4: Simplify right side
    3,966.85x = 16,540,342.16
  5. Step 5: Solve for x
    x = 16,540,342.16/3,966.85
  6. Step 6: Final answer
    x = 4,169.65

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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.