Home / 5,101.22-7,040.09-2,977.40

Finding the Fourth Proportional to 5,101.22, 7,040.09 and 2,977.40

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Solution

The fourth proportional to 5,101.22, 7,040.09 and 2,977.40 is: 4,109.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,101.22 : 7,040.09 = 2,977.40 : x
  2. Step 2: Convert to fraction form
    5,101.22/7,040.09 = 2,977.40/x
  3. Step 3: Cross multiply
    5,101.22x = 7,040.09 × 2,977.40
  4. Step 4: Simplify right side
    5,101.22x = 20,961,163.97
  5. Step 5: Solve for x
    x = 20,961,163.97/5,101.22
  6. Step 6: Final answer
    x = 4,109.05

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.