Home / 5,209.88-7,816.62-3,259.76

Finding the Fourth Proportional to 5,209.88, 7,816.62 and 3,259.76

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Solution

The fourth proportional to 5,209.88, 7,816.62 and 3,259.76 is: 4,890.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,209.88 : 7,816.62 = 3,259.76 : x
  2. Step 2: Convert to fraction form
    5,209.88/7,816.62 = 3,259.76/x
  3. Step 3: Cross multiply
    5,209.88x = 7,816.62 × 3,259.76
  4. Step 4: Simplify right side
    5,209.88x = 25,480,305.21
  5. Step 5: Solve for x
    x = 25,480,305.21/5,209.88
  6. Step 6: Final answer
    x = 4,890.77

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.