Home / 5,620.41-7,755.75-3,102.52

Finding the Fourth Proportional to 5,620.41, 7,755.75 and 3,102.52

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Solution

The fourth proportional to 5,620.41, 7,755.75 and 3,102.52 is: 4,281.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,620.41 : 7,755.75 = 3,102.52 : x
  2. Step 2: Convert to fraction form
    5,620.41/7,755.75 = 3,102.52/x
  3. Step 3: Cross multiply
    5,620.41x = 7,755.75 × 3,102.52
  4. Step 4: Simplify right side
    5,620.41x = 24,062,369.49
  5. Step 5: Solve for x
    x = 24,062,369.49/5,620.41
  6. Step 6: Final answer
    x = 4,281.25

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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.