Home / 8,091.38-12,138.08-2,897.25

Finding the Fourth Proportional to 8,091.38, 12,138.08 and 2,897.25

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Solution

The fourth proportional to 8,091.38, 12,138.08 and 2,897.25 is: 4,346.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,091.38 : 12,138.08 = 2,897.25 : x
  2. Step 2: Convert to fraction form
    8,091.38/12,138.08 = 2,897.25/x
  3. Step 3: Cross multiply
    8,091.38x = 12,138.08 × 2,897.25
  4. Step 4: Simplify right side
    8,091.38x = 35,167,037.79
  5. Step 5: Solve for x
    x = 35,167,037.79/8,091.38
  6. Step 6: Final answer
    x = 4,346.24

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1.5x scale

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.