Home / 1,451.08-2,176.62-629.32

Finding the Fourth Proportional to 1,451.08, 2,176.62 and 629.32

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Solution

The fourth proportional to 1,451.08, 2,176.62 and 629.32 is: 943.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,451.08 : 2,176.62 = 629.32 : x
  2. Step 2: Convert to fraction form
    1,451.08/2,176.62 = 629.32/x
  3. Step 3: Cross multiply
    1,451.08x = 2,176.62 × 629.32
  4. Step 4: Simplify right side
    1,451.08x = 1,369,790.50
  5. Step 5: Solve for x
    x = 1,369,790.50/1,451.08
  6. Step 6: Final answer
    x = 943.98

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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.