Home / 6,638.42-9,961.77-3,718.64

Finding the Fourth Proportional to 6,638.42, 9,961.77 and 3,718.64

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Solution

The fourth proportional to 6,638.42, 9,961.77 and 3,718.64 is: 5,580.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,638.42 : 9,961.77 = 3,718.64 : x
  2. Step 2: Convert to fraction form
    6,638.42/9,961.77 = 3,718.64/x
  3. Step 3: Cross multiply
    6,638.42x = 9,961.77 × 3,718.64
  4. Step 4: Simplify right side
    6,638.42x = 37,044,236.39
  5. Step 5: Solve for x
    x = 37,044,236.39/6,638.42
  6. Step 6: Final answer
    x = 5,580.28

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.