Home / 5,238.11-7,228.37-2,880.25

Finding the Fourth Proportional to 5,238.11, 7,228.37 and 2,880.25

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Solution

The fourth proportional to 5,238.11, 7,228.37 and 2,880.25 is: 3,974.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,238.11 : 7,228.37 = 2,880.25 : x
  2. Step 2: Convert to fraction form
    5,238.11/7,228.37 = 2,880.25/x
  3. Step 3: Cross multiply
    5,238.11x = 7,228.37 × 2,880.25
  4. Step 4: Simplify right side
    5,238.11x = 20,819,501.82
  5. Step 5: Solve for x
    x = 20,819,501.82/5,238.11
  6. Step 6: Final answer
    x = 3,974.62

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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.