Home / 1,450.69-2,176.37-629.10

Finding the Fourth Proportional to 1,450.69, 2,176.37 and 629.10

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Solution

The fourth proportional to 1,450.69, 2,176.37 and 629.10 is: 943.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,450.69 : 2,176.37 = 629.10 : x
  2. Step 2: Convert to fraction form
    1,450.69/2,176.37 = 629.10/x
  3. Step 3: Cross multiply
    1,450.69x = 2,176.37 × 629.10
  4. Step 4: Simplify right side
    1,450.69x = 1,369,154.37
  5. Step 5: Solve for x
    x = 1,369,154.37/1,450.69
  6. Step 6: Final answer
    x = 943.80

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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.