Home / 4,251.36-6,376.12-1,328.06

Finding the Fourth Proportional to 4,251.36, 6,376.12 and 1,328.06

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Solution

The fourth proportional to 4,251.36, 6,376.12 and 1,328.06 is: 1,991.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,251.36 : 6,376.12 = 1,328.06 : x
  2. Step 2: Convert to fraction form
    4,251.36/6,376.12 = 1,328.06/x
  3. Step 3: Cross multiply
    4,251.36x = 6,376.12 × 1,328.06
  4. Step 4: Simplify right side
    4,251.36x = 8,467,869.93
  5. Step 5: Solve for x
    x = 8,467,869.93/4,251.36
  6. Step 6: Final answer
    x = 1,991.80

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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.