Home / 5,217.22-7,199.70-2,859.36

Finding the Fourth Proportional to 5,217.22, 7,199.70 and 2,859.36

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Solution

The fourth proportional to 5,217.22, 7,199.70 and 2,859.36 is: 3,945.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,217.22 : 7,199.70 = 2,859.36 : x
  2. Step 2: Convert to fraction form
    5,217.22/7,199.70 = 2,859.36/x
  3. Step 3: Cross multiply
    5,217.22x = 7,199.70 × 2,859.36
  4. Step 4: Simplify right side
    5,217.22x = 20,586,534.19
  5. Step 5: Solve for x
    x = 20,586,534.19/5,217.22
  6. Step 6: Final answer
    x = 3,945.88

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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.