Home / 5,425.44-7,485.78-3,187.41

Finding the Fourth Proportional to 5,425.44, 7,485.78 and 3,187.41

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Solution

The fourth proportional to 5,425.44, 7,485.78 and 3,187.41 is: 4,397.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,425.44 : 7,485.78 = 3,187.41 : x
  2. Step 2: Convert to fraction form
    5,425.44/7,485.78 = 3,187.41/x
  3. Step 3: Cross multiply
    5,425.44x = 7,485.78 × 3,187.41
  4. Step 4: Simplify right side
    5,425.44x = 23,860,250.03
  5. Step 5: Solve for x
    x = 23,860,250.03/5,425.44
  6. Step 6: Final answer
    x = 4,397.85

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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.