Home / 5,618.75-7,756.49-3,260.43

Finding the Fourth Proportional to 5,618.75, 7,756.49 and 3,260.43

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Solution

The fourth proportional to 5,618.75, 7,756.49 and 3,260.43 is: 4,500.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,618.75 : 7,756.49 = 3,260.43 : x
  2. Step 2: Convert to fraction form
    5,618.75/7,756.49 = 3,260.43/x
  3. Step 3: Cross multiply
    5,618.75x = 7,756.49 × 3,260.43
  4. Step 4: Simplify right side
    5,618.75x = 25,289,500.84
  5. Step 5: Solve for x
    x = 25,289,500.84/5,618.75
  6. Step 6: Final answer
    x = 4,500.92

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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.