Home / 7,619.48-11,429.10-2,425.28

Finding the Fourth Proportional to 7,619.48, 11,429.10 and 2,425.28

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Solution

The fourth proportional to 7,619.48, 11,429.10 and 2,425.28 is: 3,637.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,619.48 : 11,429.10 = 2,425.28 : x
  2. Step 2: Convert to fraction form
    7,619.48/11,429.10 = 2,425.28/x
  3. Step 3: Cross multiply
    7,619.48x = 11,429.10 × 2,425.28
  4. Step 4: Simplify right side
    7,619.48x = 27,718,767.65
  5. Step 5: Solve for x
    x = 27,718,767.65/7,619.48
  6. Step 6: Final answer
    x = 3,637.88

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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.