Home / 6,638.10-9,160.61-3,653.79

Finding the Fourth Proportional to 6,638.10, 9,160.61 and 3,653.79

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Solution

The fourth proportional to 6,638.10, 9,160.61 and 3,653.79 is: 5,042.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,638.10 : 9,160.61 = 3,653.79 : x
  2. Step 2: Convert to fraction form
    6,638.10/9,160.61 = 3,653.79/x
  3. Step 3: Cross multiply
    6,638.10x = 9,160.61 × 3,653.79
  4. Step 4: Simplify right side
    6,638.10x = 33,470,926.94
  5. Step 5: Solve for x
    x = 33,470,926.94/6,638.10
  6. Step 6: Final answer
    x = 5,042.25

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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.