Home / 5,381.09-7,425.24-3,112.82

Finding the Fourth Proportional to 5,381.09, 7,425.24 and 3,112.82

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Solution

The fourth proportional to 5,381.09, 7,425.24 and 3,112.82 is: 4,295.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,381.09 : 7,425.24 = 3,112.82 : x
  2. Step 2: Convert to fraction form
    5,381.09/7,425.24 = 3,112.82/x
  3. Step 3: Cross multiply
    5,381.09x = 7,425.24 × 3,112.82
  4. Step 4: Simplify right side
    5,381.09x = 23,113,435.58
  5. Step 5: Solve for x
    x = 23,113,435.58/5,381.09
  6. Step 6: Final answer
    x = 4,295.31

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1.5x scale

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.