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Finding the Fourth Proportional to 7,076.08, 9,763.92 and 4,091.32

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Solution

The fourth proportional to 7,076.08, 9,763.92 and 4,091.32 is: 5,645.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,076.08 : 9,763.92 = 4,091.32 : x
  2. Step 2: Convert to fraction form
    7,076.08/9,763.92 = 4,091.32/x
  3. Step 3: Cross multiply
    7,076.08x = 9,763.92 × 4,091.32
  4. Step 4: Simplify right side
    7,076.08x = 39,947,321.17
  5. Step 5: Solve for x
    x = 39,947,321.17/7,076.08
  6. Step 6: Final answer
    x = 5,645.40

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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.