Home / 5,126.66-7,684.54-2,205.20

Finding the Fourth Proportional to 5,126.66, 7,684.54 and 2,205.20

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Solution

The fourth proportional to 5,126.66, 7,684.54 and 2,205.20 is: 3,305.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,126.66 : 7,684.54 = 2,205.20 : x
  2. Step 2: Convert to fraction form
    5,126.66/7,684.54 = 2,205.20/x
  3. Step 3: Cross multiply
    5,126.66x = 7,684.54 × 2,205.20
  4. Step 4: Simplify right side
    5,126.66x = 16,945,947.61
  5. Step 5: Solve for x
    x = 16,945,947.61/5,126.66
  6. Step 6: Final answer
    x = 3,305.46

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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.