Home / 9,220.09-13,831.40-2,978.03

Finding the Fourth Proportional to 9,220.09, 13,831.40 and 2,978.03

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Solution

The fourth proportional to 9,220.09, 13,831.40 and 2,978.03 is: 4,467.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,220.09 : 13,831.40 = 2,978.03 : x
  2. Step 2: Convert to fraction form
    9,220.09/13,831.40 = 2,978.03/x
  3. Step 3: Cross multiply
    9,220.09x = 13,831.40 × 2,978.03
  4. Step 4: Simplify right side
    9,220.09x = 41,190,324.14
  5. Step 5: Solve for x
    x = 41,190,324.14/9,220.09
  6. Step 6: Final answer
    x = 4,467.45

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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.