Home / 7,838.20-11,758.26-3,456.76

Finding the Fourth Proportional to 7,838.20, 11,758.26 and 3,456.76

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Solution

The fourth proportional to 7,838.20, 11,758.26 and 3,456.76 is: 5,185.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,838.20 : 11,758.26 = 3,456.76 : x
  2. Step 2: Convert to fraction form
    7,838.20/11,758.26 = 3,456.76/x
  3. Step 3: Cross multiply
    7,838.20x = 11,758.26 × 3,456.76
  4. Step 4: Simplify right side
    7,838.20x = 40,645,482.84
  5. Step 5: Solve for x
    x = 40,645,482.84/7,838.20
  6. Step 6: Final answer
    x = 5,185.56

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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.