Home / 7,419.09-11,125.07-2,485.28

Finding the Fourth Proportional to 7,419.09, 11,125.07 and 2,485.28

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Solution

The fourth proportional to 7,419.09, 11,125.07 and 2,485.28 is: 3,726.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,419.09 : 11,125.07 = 2,485.28 : x
  2. Step 2: Convert to fraction form
    7,419.09/11,125.07 = 2,485.28/x
  3. Step 3: Cross multiply
    7,419.09x = 11,125.07 × 2,485.28
  4. Step 4: Simplify right side
    7,419.09x = 27,648,887.64
  5. Step 5: Solve for x
    x = 27,648,887.64/7,419.09
  6. Step 6: Final answer
    x = 3,726.72

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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.