Home / 2,207.05-3,309.90-1,166.47

Finding the Fourth Proportional to 2,207.05, 3,309.90 and 1,166.47

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Solution

The fourth proportional to 2,207.05, 3,309.90 and 1,166.47 is: 1,749.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,207.05 : 3,309.90 = 1,166.47 : x
  2. Step 2: Convert to fraction form
    2,207.05/3,309.90 = 1,166.47/x
  3. Step 3: Cross multiply
    2,207.05x = 3,309.90 × 1,166.47
  4. Step 4: Simplify right side
    2,207.05x = 3,860,886.40
  5. Step 5: Solve for x
    x = 3,860,886.40/2,207.05
  6. Step 6: Final answer
    x = 1,749.34

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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.