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Finding the Fourth Proportional to 3,666.76, 5,500.19 and 1,201.77

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Solution

The fourth proportional to 3,666.76, 5,500.19 and 1,201.77 is: 1,802.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,666.76 : 5,500.19 = 1,201.77 : x
  2. Step 2: Convert to fraction form
    3,666.76/5,500.19 = 1,201.77/x
  3. Step 3: Cross multiply
    3,666.76x = 5,500.19 × 1,201.77
  4. Step 4: Simplify right side
    3,666.76x = 6,609,966.34
  5. Step 5: Solve for x
    x = 6,609,966.34/3,666.76
  6. Step 6: Final answer
    x = 1,802.67

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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.