Home / 5,262.66-7,887.16-2,139.03

Finding the Fourth Proportional to 5,262.66, 7,887.16 and 2,139.03

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Solution

The fourth proportional to 5,262.66, 7,887.16 and 2,139.03 is: 3,205.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,262.66 : 7,887.16 = 2,139.03 : x
  2. Step 2: Convert to fraction form
    5,262.66/7,887.16 = 2,139.03/x
  3. Step 3: Cross multiply
    5,262.66x = 7,887.16 × 2,139.03
  4. Step 4: Simplify right side
    5,262.66x = 16,870,884.68
  5. Step 5: Solve for x
    x = 16,870,884.68/5,262.66
  6. Step 6: Final answer
    x = 3,205.77

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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.