Home / 5,181.77-7,770.53-2,218.29

Finding the Fourth Proportional to 5,181.77, 7,770.53 and 2,218.29

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Solution

The fourth proportional to 5,181.77, 7,770.53 and 2,218.29 is: 3,326.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,181.77 : 7,770.53 = 2,218.29 : x
  2. Step 2: Convert to fraction form
    5,181.77/7,770.53 = 2,218.29/x
  3. Step 3: Cross multiply
    5,181.77x = 7,770.53 × 2,218.29
  4. Step 4: Simplify right side
    5,181.77x = 17,237,265.40
  5. Step 5: Solve for x
    x = 17,237,265.40/5,181.77
  6. Step 6: Final answer
    x = 3,326.52

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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.