Home / 7,388.99-11,077.72-3,689.36

Finding the Fourth Proportional to 7,388.99, 11,077.72 and 3,689.36

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Solution

The fourth proportional to 7,388.99, 11,077.72 and 3,689.36 is: 5,531.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,388.99 : 11,077.72 = 3,689.36 : x
  2. Step 2: Convert to fraction form
    7,388.99/11,077.72 = 3,689.36/x
  3. Step 3: Cross multiply
    7,388.99x = 11,077.72 × 3,689.36
  4. Step 4: Simplify right side
    7,388.99x = 40,869,632.45
  5. Step 5: Solve for x
    x = 40,869,632.45/7,388.99
  6. Step 6: Final answer
    x = 5,531.16

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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.