Home / 5,218.41-7,201.86-2,861.01

Finding the Fourth Proportional to 5,218.41, 7,201.86 and 2,861.01

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Solution

The fourth proportional to 5,218.41, 7,201.86 and 2,861.01 is: 3,948.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,218.41 : 7,201.86 = 2,861.01 : x
  2. Step 2: Convert to fraction form
    5,218.41/7,201.86 = 2,861.01/x
  3. Step 3: Cross multiply
    5,218.41x = 7,201.86 × 2,861.01
  4. Step 4: Simplify right side
    5,218.41x = 20,604,593.48
  5. Step 5: Solve for x
    x = 20,604,593.48/5,218.41
  6. Step 6: Final answer
    x = 3,948.44

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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.