Home / 5,218.72-7,817.98-3,245.13

Finding the Fourth Proportional to 5,218.72, 7,817.98 and 3,245.13

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Solution

The fourth proportional to 5,218.72, 7,817.98 and 3,245.13 is: 4,861.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,218.72 : 7,817.98 = 3,245.13 : x
  2. Step 2: Convert to fraction form
    5,218.72/7,817.98 = 3,245.13/x
  3. Step 3: Cross multiply
    5,218.72x = 7,817.98 × 3,245.13
  4. Step 4: Simplify right side
    5,218.72x = 25,370,373.23
  5. Step 5: Solve for x
    x = 25,370,373.23/5,218.72
  6. Step 6: Final answer
    x = 4,861.42

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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.