Home / 5,181.18-7,765.26-2,216.13

Finding the Fourth Proportional to 5,181.18, 7,765.26 and 2,216.13

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Solution

The fourth proportional to 5,181.18, 7,765.26 and 2,216.13 is: 3,321.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,181.18 : 7,765.26 = 2,216.13 : x
  2. Step 2: Convert to fraction form
    5,181.18/7,765.26 = 2,216.13/x
  3. Step 3: Cross multiply
    5,181.18x = 7,765.26 × 2,216.13
  4. Step 4: Simplify right side
    5,181.18x = 17,208,869.32
  5. Step 5: Solve for x
    x = 17,208,869.32/5,181.18
  6. Step 6: Final answer
    x = 3,321.42

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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.