Home / 2,312.18-3,467.25-668.69

Finding the Fourth Proportional to 2,312.18, 3,467.25 and 668.69

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Solution

The fourth proportional to 2,312.18, 3,467.25 and 668.69 is: 1,002.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,312.18 : 3,467.25 = 668.69 : x
  2. Step 2: Convert to fraction form
    2,312.18/3,467.25 = 668.69/x
  3. Step 3: Cross multiply
    2,312.18x = 3,467.25 × 668.69
  4. Step 4: Simplify right side
    2,312.18x = 2,318,498.07
  5. Step 5: Solve for x
    x = 2,318,498.07/2,312.18
  6. Step 6: Final answer
    x = 1,002.73

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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.