Home / 3,189.13-4,792.80-3,170.90

Finding the Fourth Proportional to 3,189.13, 4,792.80 and 3,170.90

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Solution

The fourth proportional to 3,189.13, 4,792.80 and 3,170.90 is: 4,765.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,189.13 : 4,792.80 = 3,170.90 : x
  2. Step 2: Convert to fraction form
    3,189.13/4,792.80 = 3,170.90/x
  3. Step 3: Cross multiply
    3,189.13x = 4,792.80 × 3,170.90
  4. Step 4: Simplify right side
    3,189.13x = 15,197,489.52
  5. Step 5: Solve for x
    x = 15,197,489.52/3,189.13
  6. Step 6: Final answer
    x = 4,765.40

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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.