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Finding the Fourth Proportional to 6,401.20, 8,833.50 and 3,606.70

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Solution

The fourth proportional to 6,401.20, 8,833.50 and 3,606.70 is: 4,977.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,401.20 : 8,833.50 = 3,606.70 : x
  2. Step 2: Convert to fraction form
    6,401.20/8,833.50 = 3,606.70/x
  3. Step 3: Cross multiply
    6,401.20x = 8,833.50 × 3,606.70
  4. Step 4: Simplify right side
    6,401.20x = 31,859,784.45
  5. Step 5: Solve for x
    x = 31,859,784.45/6,401.20
  6. Step 6: Final answer
    x = 4,977.16

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.