Home / 5,238.24-7,228.68-2,880.36

Finding the Fourth Proportional to 5,238.24, 7,228.68 and 2,880.36

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Solution

The fourth proportional to 5,238.24, 7,228.68 and 2,880.36 is: 3,974.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,238.24 : 7,228.68 = 2,880.36 : x
  2. Step 2: Convert to fraction form
    5,238.24/7,228.68 = 2,880.36/x
  3. Step 3: Cross multiply
    5,238.24x = 7,228.68 × 2,880.36
  4. Step 4: Simplify right side
    5,238.24x = 20,821,200.72
  5. Step 5: Solve for x
    x = 20,821,200.72/5,238.24
  6. Step 6: Final answer
    x = 3,974.85

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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.