Home / 751.04-1,126.58-443.12

Finding the Fourth Proportional to 751.04, 1,126.58 and 443.12

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Solution

The fourth proportional to 751.04, 1,126.58 and 443.12 is: 664.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    751.04 : 1,126.58 = 443.12 : x
  2. Step 2: Convert to fraction form
    751.04/1,126.58 = 443.12/x
  3. Step 3: Cross multiply
    751.04x = 1,126.58 × 443.12
  4. Step 4: Simplify right side
    751.04x = 499,202.28
  5. Step 5: Solve for x
    x = 499,202.28/751.04
  6. Step 6: Final answer
    x = 664.69

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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.