Home / 5,579.78-8,371.20-3,116.38

Finding the Fourth Proportional to 5,579.78, 8,371.20 and 3,116.38

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Solution

The fourth proportional to 5,579.78, 8,371.20 and 3,116.38 is: 4,675.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,579.78 : 8,371.20 = 3,116.38 : x
  2. Step 2: Convert to fraction form
    5,579.78/8,371.20 = 3,116.38/x
  3. Step 3: Cross multiply
    5,579.78x = 8,371.20 × 3,116.38
  4. Step 4: Simplify right side
    5,579.78x = 26,087,840.26
  5. Step 5: Solve for x
    x = 26,087,840.26/5,579.78
  6. Step 6: Final answer
    x = 4,675.42

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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.