Home / 3,057.36-4,230.24-2,665.20

Finding the Fourth Proportional to 3,057.36, 4,230.24 and 2,665.20

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Solution

The fourth proportional to 3,057.36, 4,230.24 and 2,665.20 is: 3,687.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,057.36 : 4,230.24 = 2,665.20 : x
  2. Step 2: Convert to fraction form
    3,057.36/4,230.24 = 2,665.20/x
  3. Step 3: Cross multiply
    3,057.36x = 4,230.24 × 2,665.20
  4. Step 4: Simplify right side
    3,057.36x = 11,274,435.65
  5. Step 5: Solve for x
    x = 11,274,435.65/3,057.36
  6. Step 6: Final answer
    x = 3,687.64

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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.