Home / 5,656.08-7,805.19-3,138.29

Finding the Fourth Proportional to 5,656.08, 7,805.19 and 3,138.29

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Solution

The fourth proportional to 5,656.08, 7,805.19 and 3,138.29 is: 4,330.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,656.08 : 7,805.19 = 3,138.29 : x
  2. Step 2: Convert to fraction form
    5,656.08/7,805.19 = 3,138.29/x
  3. Step 3: Cross multiply
    5,656.08x = 7,805.19 × 3,138.29
  4. Step 4: Simplify right side
    5,656.08x = 24,494,949.73
  5. Step 5: Solve for x
    x = 24,494,949.73/5,656.08
  6. Step 6: Final answer
    x = 4,330.73

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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.