Home / 1,450.51-2,175.77-1,388.55

Finding the Fourth Proportional to 1,450.51, 2,175.77 and 1,388.55

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Solution

The fourth proportional to 1,450.51, 2,175.77 and 1,388.55 is: 2,082.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,450.51 : 2,175.77 = 1,388.55 : x
  2. Step 2: Convert to fraction form
    1,450.51/2,175.77 = 1,388.55/x
  3. Step 3: Cross multiply
    1,450.51x = 2,175.77 × 1,388.55
  4. Step 4: Simplify right side
    1,450.51x = 3,021,165.43
  5. Step 5: Solve for x
    x = 3,021,165.43/1,450.51
  6. Step 6: Final answer
    x = 2,082.83

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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.