Home / 6,316.38-8,720.91-4,083.66

Finding the Fourth Proportional to 6,316.38, 8,720.91 and 4,083.66

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Solution

The fourth proportional to 6,316.38, 8,720.91 and 4,083.66 is: 5,638.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,316.38 : 8,720.91 = 4,083.66 : x
  2. Step 2: Convert to fraction form
    6,316.38/8,720.91 = 4,083.66/x
  3. Step 3: Cross multiply
    6,316.38x = 8,720.91 × 4,083.66
  4. Step 4: Simplify right side
    6,316.38x = 35,613,231.33
  5. Step 5: Solve for x
    x = 35,613,231.33/6,316.38
  6. Step 6: Final answer
    x = 5,638.23

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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.