Home / 5,245.63-7,238.97-2,887.75

Finding the Fourth Proportional to 5,245.63, 7,238.97 and 2,887.75

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Solution

The fourth proportional to 5,245.63, 7,238.97 and 2,887.75 is: 3,985.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,245.63 : 7,238.97 = 2,887.75 : x
  2. Step 2: Convert to fraction form
    5,245.63/7,238.97 = 2,887.75/x
  3. Step 3: Cross multiply
    5,245.63x = 7,238.97 × 2,887.75
  4. Step 4: Simplify right side
    5,245.63x = 20,904,335.62
  5. Step 5: Solve for x
    x = 20,904,335.62/5,245.63
  6. Step 6: Final answer
    x = 3,985.10

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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.