Home / 2,451.06-3,382.20-1,388.88

Finding the Fourth Proportional to 2,451.06, 3,382.20 and 1,388.88

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Solution

The fourth proportional to 2,451.06, 3,382.20 and 1,388.88 is: 1,916.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,451.06 : 3,382.20 = 1,388.88 : x
  2. Step 2: Convert to fraction form
    2,451.06/3,382.20 = 1,388.88/x
  3. Step 3: Cross multiply
    2,451.06x = 3,382.20 × 1,388.88
  4. Step 4: Simplify right side
    2,451.06x = 4,697,469.94
  5. Step 5: Solve for x
    x = 4,697,469.94/2,451.06
  6. Step 6: Final answer
    x = 1,916.51

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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.