Home / 1,450.45-2,170.81-1,431.01

Finding the Fourth Proportional to 1,450.45, 2,170.81 and 1,431.01

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Solution

The fourth proportional to 1,450.45, 2,170.81 and 1,431.01 is: 2,141.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,450.45 : 2,170.81 = 1,431.01 : x
  2. Step 2: Convert to fraction form
    1,450.45/2,170.81 = 1,431.01/x
  3. Step 3: Cross multiply
    1,450.45x = 2,170.81 × 1,431.01
  4. Step 4: Simplify right side
    1,450.45x = 3,106,450.82
  5. Step 5: Solve for x
    x = 3,106,450.82/1,450.45
  6. Step 6: Final answer
    x = 2,141.72

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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.