Home / 7,479.19-11,215.99-2,480.65

Finding the Fourth Proportional to 7,479.19, 11,215.99 and 2,480.65

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Solution

The fourth proportional to 7,479.19, 11,215.99 and 2,480.65 is: 3,720.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,479.19 : 11,215.99 = 2,480.65 : x
  2. Step 2: Convert to fraction form
    7,479.19/11,215.99 = 2,480.65/x
  3. Step 3: Cross multiply
    7,479.19x = 11,215.99 × 2,480.65
  4. Step 4: Simplify right side
    7,479.19x = 27,822,889.51
  5. Step 5: Solve for x
    x = 27,822,889.51/7,479.19
  6. Step 6: Final answer
    x = 3,720.04

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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.