Home / 4,251.84-6,378.42-1,329.48

Finding the Fourth Proportional to 4,251.84, 6,378.42 and 1,329.48

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Solution

The fourth proportional to 4,251.84, 6,378.42 and 1,329.48 is: 1,994.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,251.84 : 6,378.42 = 1,329.48 : x
  2. Step 2: Convert to fraction form
    4,251.84/6,378.42 = 1,329.48/x
  3. Step 3: Cross multiply
    4,251.84x = 6,378.42 × 1,329.48
  4. Step 4: Simplify right side
    4,251.84x = 8,479,981.82
  5. Step 5: Solve for x
    x = 8,479,981.82/4,251.84
  6. Step 6: Final answer
    x = 1,994.43

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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.