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Finding the Fourth Proportional to 6,630.40, 9,945.53 and 1,699.97

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Solution

The fourth proportional to 6,630.40, 9,945.53 and 1,699.97 is: 2,549.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,630.40 : 9,945.53 = 1,699.97 : x
  2. Step 2: Convert to fraction form
    6,630.40/9,945.53 = 1,699.97/x
  3. Step 3: Cross multiply
    6,630.40x = 9,945.53 × 1,699.97
  4. Step 4: Simplify right side
    6,630.40x = 16,907,060.34
  5. Step 5: Solve for x
    x = 16,907,060.34/6,630.40
  6. Step 6: Final answer
    x = 2,549.93

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1.5x scale

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.