Home / 5,528.36-7,629.24-3,138.48

Finding the Fourth Proportional to 5,528.36, 7,629.24 and 3,138.48

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Solution

The fourth proportional to 5,528.36, 7,629.24 and 3,138.48 is: 4,331.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,528.36 : 7,629.24 = 3,138.48 : x
  2. Step 2: Convert to fraction form
    5,528.36/7,629.24 = 3,138.48/x
  3. Step 3: Cross multiply
    5,528.36x = 7,629.24 × 3,138.48
  4. Step 4: Simplify right side
    5,528.36x = 23,944,217.16
  5. Step 5: Solve for x
    x = 23,944,217.16/5,528.36
  6. Step 6: Final answer
    x = 4,331.16

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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.