Home / 4,251.94-6,378.48-1,330.47

Finding the Fourth Proportional to 4,251.94, 6,378.48 and 1,330.47

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Solution

The fourth proportional to 4,251.94, 6,378.48 and 1,330.47 is: 1,995.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,251.94 : 6,378.48 = 1,330.47 : x
  2. Step 2: Convert to fraction form
    4,251.94/6,378.48 = 1,330.47/x
  3. Step 3: Cross multiply
    4,251.94x = 6,378.48 × 1,330.47
  4. Step 4: Simplify right side
    4,251.94x = 8,486,376.29
  5. Step 5: Solve for x
    x = 8,486,376.29/4,251.94
  6. Step 6: Final answer
    x = 1,995.88

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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.