Home / 3,230.16-4,451.40-2,180.40

Finding the Fourth Proportional to 3,230.16, 4,451.40 and 2,180.40

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Solution

The fourth proportional to 3,230.16, 4,451.40 and 2,180.40 is: 3,004.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,230.16 : 4,451.40 = 2,180.40 : x
  2. Step 2: Convert to fraction form
    3,230.16/4,451.40 = 2,180.40/x
  3. Step 3: Cross multiply
    3,230.16x = 4,451.40 × 2,180.40
  4. Step 4: Simplify right side
    3,230.16x = 9,705,832.56
  5. Step 5: Solve for x
    x = 9,705,832.56/3,230.16
  6. Step 6: Final answer
    x = 3,004.75

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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.