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Finding the Fourth Proportional to 6,630.16, 9,945.40 and 3,701.20

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Solution

The fourth proportional to 6,630.16, 9,945.40 and 3,701.20 is: 5,551.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,630.16 : 9,945.40 = 3,701.20 : x
  2. Step 2: Convert to fraction form
    6,630.16/9,945.40 = 3,701.20/x
  3. Step 3: Cross multiply
    6,630.16x = 9,945.40 × 3,701.20
  4. Step 4: Simplify right side
    6,630.16x = 36,809,914.48
  5. Step 5: Solve for x
    x = 36,809,914.48/6,630.16
  6. Step 6: Final answer
    x = 5,551.89

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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.