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Finding the Fourth Proportional to 3,087, 4,250.16 and 2,638.08

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Solution

The fourth proportional to 3,087, 4,250.16 and 2,638.08 is: 3,632.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,087 : 4,250.16 = 2,638.08 : x
  2. Step 2: Convert to fraction form
    3,087/4,250.16 = 2,638.08/x
  3. Step 3: Cross multiply
    3,087x = 4,250.16 × 2,638.08
  4. Step 4: Simplify right side
    3,087x = 11,212,262.09
  5. Step 5: Solve for x
    x = 11,212,262.09/3,087
  6. Step 6: Final answer
    x = 3,632.09

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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.