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Finding the Fourth Proportional to 3,977.03, 5,966.40 and 1,203.86

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Solution

The fourth proportional to 3,977.03, 5,966.40 and 1,203.86 is: 1,806.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,977.03 : 5,966.40 = 1,203.86 : x
  2. Step 2: Convert to fraction form
    3,977.03/5,966.40 = 1,203.86/x
  3. Step 3: Cross multiply
    3,977.03x = 5,966.40 × 1,203.86
  4. Step 4: Simplify right side
    3,977.03x = 7,182,710.30
  5. Step 5: Solve for x
    x = 7,182,710.30/3,977.03
  6. Step 6: Final answer
    x = 1,806.05

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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.