Home / 5,528.92-7,629.33-3,138.13

Finding the Fourth Proportional to 5,528.92, 7,629.33 and 3,138.13

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Solution

The fourth proportional to 5,528.92, 7,629.33 and 3,138.13 is: 4,330.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,528.92 : 7,629.33 = 3,138.13 : x
  2. Step 2: Convert to fraction form
    5,528.92/7,629.33 = 3,138.13/x
  3. Step 3: Cross multiply
    5,528.92x = 7,629.33 × 3,138.13
  4. Step 4: Simplify right side
    5,528.92x = 23,941,829.35
  5. Step 5: Solve for x
    x = 23,941,829.35/5,528.92
  6. Step 6: Final answer
    x = 4,330.29

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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.