Home / 3,188.72-4,775.78-3,135.26

Finding the Fourth Proportional to 3,188.72, 4,775.78 and 3,135.26

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Solution

The fourth proportional to 3,188.72, 4,775.78 and 3,135.26 is: 4,695.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,188.72 : 4,775.78 = 3,135.26 : x
  2. Step 2: Convert to fraction form
    3,188.72/4,775.78 = 3,135.26/x
  3. Step 3: Cross multiply
    3,188.72x = 4,775.78 × 3,135.26
  4. Step 4: Simplify right side
    3,188.72x = 14,973,272.45
  5. Step 5: Solve for x
    x = 14,973,272.45/3,188.72
  6. Step 6: Final answer
    x = 4,695.71

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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.