Home / 6,638.08-9,160.55-3,653.91

Finding the Fourth Proportional to 6,638.08, 9,160.55 and 3,653.91

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Solution

The fourth proportional to 6,638.08, 9,160.55 and 3,653.91 is: 5,042.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,638.08 : 9,160.55 = 3,653.91 : x
  2. Step 2: Convert to fraction form
    6,638.08/9,160.55 = 3,653.91/x
  3. Step 3: Cross multiply
    6,638.08x = 9,160.55 × 3,653.91
  4. Step 4: Simplify right side
    6,638.08x = 33,471,825.25
  5. Step 5: Solve for x
    x = 33,471,825.25/6,638.08
  6. Step 6: Final answer
    x = 5,042.40

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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.