Home / 5,629.10-7,769.57-3,240.25

Finding the Fourth Proportional to 5,629.10, 7,769.57 and 3,240.25

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Solution

The fourth proportional to 5,629.10, 7,769.57 and 3,240.25 is: 4,472.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,629.10 : 7,769.57 = 3,240.25 : x
  2. Step 2: Convert to fraction form
    5,629.10/7,769.57 = 3,240.25/x
  3. Step 3: Cross multiply
    5,629.10x = 7,769.57 × 3,240.25
  4. Step 4: Simplify right side
    5,629.10x = 25,175,375.50
  5. Step 5: Solve for x
    x = 25,175,375.50/5,629.10
  6. Step 6: Final answer
    x = 4,472.37

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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.