Home / 5,821.05-8,027.47-3,911.19

Finding the Fourth Proportional to 5,821.05, 8,027.47 and 3,911.19

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Solution

The fourth proportional to 5,821.05, 8,027.47 and 3,911.19 is: 5,393.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,821.05 : 8,027.47 = 3,911.19 : x
  2. Step 2: Convert to fraction form
    5,821.05/8,027.47 = 3,911.19/x
  3. Step 3: Cross multiply
    5,821.05x = 8,027.47 × 3,911.19
  4. Step 4: Simplify right side
    5,821.05x = 31,396,980.33
  5. Step 5: Solve for x
    x = 31,396,980.33/5,821.05
  6. Step 6: Final answer
    x = 5,393.69

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Double scale
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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.