Home / 6,638.77-9,161.91-3,655.27

Finding the Fourth Proportional to 6,638.77, 9,161.91 and 3,655.27

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Solution

The fourth proportional to 6,638.77, 9,161.91 and 3,655.27 is: 5,044.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,638.77 : 9,161.91 = 3,655.27 : x
  2. Step 2: Convert to fraction form
    6,638.77/9,161.91 = 3,655.27/x
  3. Step 3: Cross multiply
    6,638.77x = 9,161.91 × 3,655.27
  4. Step 4: Simplify right side
    6,638.77x = 33,489,208.96
  5. Step 5: Solve for x
    x = 33,489,208.96/6,638.77
  6. Step 6: Final answer
    x = 5,044.49

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Half scale
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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.