Home / 2,450.52-3,381.78-1,388.36

Finding the Fourth Proportional to 2,450.52, 3,381.78 and 1,388.36

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Solution

The fourth proportional to 2,450.52, 3,381.78 and 1,388.36 is: 1,915.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,450.52 : 3,381.78 = 1,388.36 : x
  2. Step 2: Convert to fraction form
    2,450.52/3,381.78 = 1,388.36/x
  3. Step 3: Cross multiply
    2,450.52x = 3,381.78 × 1,388.36
  4. Step 4: Simplify right side
    2,450.52x = 4,695,128.08
  5. Step 5: Solve for x
    x = 4,695,128.08/2,450.52
  6. Step 6: Final answer
    x = 1,915.97

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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.