Home / 5,238.05-7,228.73-2,880.27

Finding the Fourth Proportional to 5,238.05, 7,228.73 and 2,880.27

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Solution

The fourth proportional to 5,238.05, 7,228.73 and 2,880.27 is: 3,974.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,238.05 : 7,228.73 = 2,880.27 : x
  2. Step 2: Convert to fraction form
    5,238.05/7,228.73 = 2,880.27/x
  3. Step 3: Cross multiply
    5,238.05x = 7,228.73 × 2,880.27
  4. Step 4: Simplify right side
    5,238.05x = 20,820,701.36
  5. Step 5: Solve for x
    x = 20,820,701.36/5,238.05
  6. Step 6: Final answer
    x = 3,974.90

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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.