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Finding the Fourth Proportional to 6,644.55, 9,968.14 and 1,900.75

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Solution

The fourth proportional to 6,644.55, 9,968.14 and 1,900.75 is: 2,851.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,644.55 : 9,968.14 = 1,900.75 : x
  2. Step 2: Convert to fraction form
    6,644.55/9,968.14 = 1,900.75/x
  3. Step 3: Cross multiply
    6,644.55x = 9,968.14 × 1,900.75
  4. Step 4: Simplify right side
    6,644.55x = 18,946,968.94
  5. Step 5: Solve for x
    x = 18,946,968.94/6,644.55
  6. Step 6: Final answer
    x = 2,851.51

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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.