Home / 4,207.25-6,311.00-1,129.25

Finding the Fourth Proportional to 4,207.25, 6,311.00 and 1,129.25

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Solution

The fourth proportional to 4,207.25, 6,311.00 and 1,129.25 is: 1,693.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,207.25 : 6,311.00 = 1,129.25 : x
  2. Step 2: Convert to fraction form
    4,207.25/6,311.00 = 1,129.25/x
  3. Step 3: Cross multiply
    4,207.25x = 6,311.00 × 1,129.25
  4. Step 4: Simplify right side
    4,207.25x = 7,126,691.10
  5. Step 5: Solve for x
    x = 7,126,691.10/4,207.25
  6. Step 6: Final answer
    x = 1,693.91

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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.