Home / 6,638.23-9,160.50-3,653.88

Finding the Fourth Proportional to 6,638.23, 9,160.50 and 3,653.88

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Solution

The fourth proportional to 6,638.23, 9,160.50 and 3,653.88 is: 5,042.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,638.23 : 9,160.50 = 3,653.88 : x
  2. Step 2: Convert to fraction form
    6,638.23/9,160.50 = 3,653.88/x
  3. Step 3: Cross multiply
    6,638.23x = 9,160.50 × 3,653.88
  4. Step 4: Simplify right side
    6,638.23x = 33,471,367.74
  5. Step 5: Solve for x
    x = 33,471,367.74/6,638.23
  6. Step 6: Final answer
    x = 5,042.21

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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.