Home / 3,238.12-4,857.32-929.80

Finding the Fourth Proportional to 3,238.12, 4,857.32 and 929.80

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Solution

The fourth proportional to 3,238.12, 4,857.32 and 929.80 is: 1,394.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,238.12 : 4,857.32 = 929.80 : x
  2. Step 2: Convert to fraction form
    3,238.12/4,857.32 = 929.80/x
  3. Step 3: Cross multiply
    3,238.12x = 4,857.32 × 929.80
  4. Step 4: Simplify right side
    3,238.12x = 4,516,336.14
  5. Step 5: Solve for x
    x = 4,516,336.14/3,238.12
  6. Step 6: Final answer
    x = 1,394.74

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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.