Home / 5,230.21-7,221.07-3,242.88

Finding the Fourth Proportional to 5,230.21, 7,221.07 and 3,242.88

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Solution

The fourth proportional to 5,230.21, 7,221.07 and 3,242.88 is: 4,477.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,230.21 : 7,221.07 = 3,242.88 : x
  2. Step 2: Convert to fraction form
    5,230.21/7,221.07 = 3,242.88/x
  3. Step 3: Cross multiply
    5,230.21x = 7,221.07 × 3,242.88
  4. Step 4: Simplify right side
    5,230.21x = 23,417,063.48
  5. Step 5: Solve for x
    x = 23,417,063.48/5,230.21
  6. Step 6: Final answer
    x = 4,477.27

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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.