Home / 5,319.58-7,939.16-5,181.34

Finding the Fourth Proportional to 5,319.58, 7,939.16 and 5,181.34

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Solution

The fourth proportional to 5,319.58, 7,939.16 and 5,181.34 is: 7,732.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,319.58 : 7,939.16 = 5,181.34 : x
  2. Step 2: Convert to fraction form
    5,319.58/7,939.16 = 5,181.34/x
  3. Step 3: Cross multiply
    5,319.58x = 7,939.16 × 5,181.34
  4. Step 4: Simplify right side
    5,319.58x = 41,135,487.27
  5. Step 5: Solve for x
    x = 41,135,487.27/5,319.58
  6. Step 6: Final answer
    x = 7,732.84

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.