Home / 3,930.51-5,424.09-2,252.48

Finding the Fourth Proportional to 3,930.51, 5,424.09 and 2,252.48

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Solution

The fourth proportional to 3,930.51, 5,424.09 and 2,252.48 is: 3,108.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,930.51 : 5,424.09 = 2,252.48 : x
  2. Step 2: Convert to fraction form
    3,930.51/5,424.09 = 2,252.48/x
  3. Step 3: Cross multiply
    3,930.51x = 5,424.09 × 2,252.48
  4. Step 4: Simplify right side
    3,930.51x = 12,217,654.24
  5. Step 5: Solve for x
    x = 12,217,654.24/3,930.51
  6. Step 6: Final answer
    x = 3,108.41

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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.