Home / 5,579.31-8,368.97-2,116.56

Finding the Fourth Proportional to 5,579.31, 8,368.97 and 2,116.56

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Solution

The fourth proportional to 5,579.31, 8,368.97 and 2,116.56 is: 3,174.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,579.31 : 8,368.97 = 2,116.56 : x
  2. Step 2: Convert to fraction form
    5,579.31/8,368.97 = 2,116.56/x
  3. Step 3: Cross multiply
    5,579.31x = 8,368.97 × 2,116.56
  4. Step 4: Simplify right side
    5,579.31x = 17,713,427.14
  5. Step 5: Solve for x
    x = 17,713,427.14/5,579.31
  6. Step 6: Final answer
    x = 3,174.84

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Similar ratio
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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.