Home / 5,230.12-7,845.20-1,334.40

Finding the Fourth Proportional to 5,230.12, 7,845.20 and 1,334.40

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Solution

The fourth proportional to 5,230.12, 7,845.20 and 1,334.40 is: 2,001.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,230.12 : 7,845.20 = 1,334.40 : x
  2. Step 2: Convert to fraction form
    5,230.12/7,845.20 = 1,334.40/x
  3. Step 3: Cross multiply
    5,230.12x = 7,845.20 × 1,334.40
  4. Step 4: Simplify right side
    5,230.12x = 10,468,634.88
  5. Step 5: Solve for x
    x = 10,468,634.88/5,230.12
  6. Step 6: Final answer
    x = 2,001.61

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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.