Home / 1,451.15-2,177.53-629.43

Finding the Fourth Proportional to 1,451.15, 2,177.53 and 629.43

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Solution

The fourth proportional to 1,451.15, 2,177.53 and 629.43 is: 944.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,451.15 : 2,177.53 = 629.43 : x
  2. Step 2: Convert to fraction form
    1,451.15/2,177.53 = 629.43/x
  3. Step 3: Cross multiply
    1,451.15x = 2,177.53 × 629.43
  4. Step 4: Simplify right side
    1,451.15x = 1,370,605.22
  5. Step 5: Solve for x
    x = 1,370,605.22/1,451.15
  6. Step 6: Final answer
    x = 944.49

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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.