Home / 1,451.08-2,176.62-628.18

Finding the Fourth Proportional to 1,451.08, 2,176.62 and 628.18

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Solution

The fourth proportional to 1,451.08, 2,176.62 and 628.18 is: 942.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,451.08 : 2,176.62 = 628.18 : x
  2. Step 2: Convert to fraction form
    1,451.08/2,176.62 = 628.18/x
  3. Step 3: Cross multiply
    1,451.08x = 2,176.62 × 628.18
  4. Step 4: Simplify right side
    1,451.08x = 1,367,309.15
  5. Step 5: Solve for x
    x = 1,367,309.15/1,451.08
  6. Step 6: Final answer
    x = 942.27

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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.