Home / 3,122.10-4,310.09-2,412.36

Finding the Fourth Proportional to 3,122.10, 4,310.09 and 2,412.36

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Solution

The fourth proportional to 3,122.10, 4,310.09 and 2,412.36 is: 3,330.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,122.10 : 4,310.09 = 2,412.36 : x
  2. Step 2: Convert to fraction form
    3,122.10/4,310.09 = 2,412.36/x
  3. Step 3: Cross multiply
    3,122.10x = 4,310.09 × 2,412.36
  4. Step 4: Simplify right side
    3,122.10x = 10,397,476.65
  5. Step 5: Solve for x
    x = 10,397,476.65/3,122.10
  6. Step 6: Final answer
    x = 3,330.28

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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.