Home / 5,238.90-7,226.64-3,141.80

Finding the Fourth Proportional to 5,238.90, 7,226.64 and 3,141.80

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Solution

The fourth proportional to 5,238.90, 7,226.64 and 3,141.80 is: 4,333.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,238.90 : 7,226.64 = 3,141.80 : x
  2. Step 2: Convert to fraction form
    5,238.90/7,226.64 = 3,141.80/x
  3. Step 3: Cross multiply
    5,238.90x = 7,226.64 × 3,141.80
  4. Step 4: Simplify right side
    5,238.90x = 22,704,657.55
  5. Step 5: Solve for x
    x = 22,704,657.55/5,238.90
  6. Step 6: Final answer
    x = 4,333.86

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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.