Home / 6,813.92-9,402.84-3,830.24

Finding the Fourth Proportional to 6,813.92, 9,402.84 and 3,830.24

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Solution

The fourth proportional to 6,813.92, 9,402.84 and 3,830.24 is: 5,285.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,813.92 : 9,402.84 = 3,830.24 : x
  2. Step 2: Convert to fraction form
    6,813.92/9,402.84 = 3,830.24/x
  3. Step 3: Cross multiply
    6,813.92x = 9,402.84 × 3,830.24
  4. Step 4: Simplify right side
    6,813.92x = 36,015,133.88
  5. Step 5: Solve for x
    x = 36,015,133.88/6,813.92
  6. Step 6: Final answer
    x = 5,285.52

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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.