Home / 1,207.29-1,673.87-1,166.79

Finding the Fourth Proportional to 1,207.29, 1,673.87 and 1,166.79

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Solution

The fourth proportional to 1,207.29, 1,673.87 and 1,166.79 is: 1,617.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,207.29 : 1,673.87 = 1,166.79 : x
  2. Step 2: Convert to fraction form
    1,207.29/1,673.87 = 1,166.79/x
  3. Step 3: Cross multiply
    1,207.29x = 1,673.87 × 1,166.79
  4. Step 4: Simplify right side
    1,207.29x = 1,953,057.69
  5. Step 5: Solve for x
    x = 1,953,057.69/1,207.29
  6. Step 6: Final answer
    x = 1,617.72

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Why These Related Problems?

These problems maintain the same ratio (1.39) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.