Home / 1,450.95-2,171.57-1,431.51

Finding the Fourth Proportional to 1,450.95, 2,171.57 and 1,431.51

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Solution

The fourth proportional to 1,450.95, 2,171.57 and 1,431.51 is: 2,142.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,450.95 : 2,171.57 = 1,431.51 : x
  2. Step 2: Convert to fraction form
    1,450.95/2,171.57 = 1,431.51/x
  3. Step 3: Cross multiply
    1,450.95x = 2,171.57 × 1,431.51
  4. Step 4: Simplify right side
    1,450.95x = 3,108,617.01
  5. Step 5: Solve for x
    x = 3,108,617.01/1,450.95
  6. Step 6: Final answer
    x = 2,142.47

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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.