Home / 1,166.29-1,749.40-386.33

Finding the Fourth Proportional to 1,166.29, 1,749.40 and 386.33

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Solution

The fourth proportional to 1,166.29, 1,749.40 and 386.33 is: 579.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,166.29 : 1,749.40 = 386.33 : x
  2. Step 2: Convert to fraction form
    1,166.29/1,749.40 = 386.33/x
  3. Step 3: Cross multiply
    1,166.29x = 1,749.40 × 386.33
  4. Step 4: Simplify right side
    1,166.29x = 675,835.99
  5. Step 5: Solve for x
    x = 675,835.99/1,166.29
  6. Step 6: Final answer
    x = 579.48

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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.