Home / 1,451.40-2,177.73-629.88

Finding the Fourth Proportional to 1,451.40, 2,177.73 and 629.88

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Solution

The fourth proportional to 1,451.40, 2,177.73 and 629.88 is: 945.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,451.40 : 2,177.73 = 629.88 : x
  2. Step 2: Convert to fraction form
    1,451.40/2,177.73 = 629.88/x
  3. Step 3: Cross multiply
    1,451.40x = 2,177.73 × 629.88
  4. Step 4: Simplify right side
    1,451.40x = 1,371,708.57
  5. Step 5: Solve for x
    x = 1,371,708.57/1,451.40
  6. Step 6: Final answer
    x = 945.09

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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.