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Finding the Fourth Proportional to 7,700.88, 10,627.20 and 4,164.12

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Solution

The fourth proportional to 7,700.88, 10,627.20 and 4,164.12 is: 5,746.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,700.88 : 10,627.20 = 4,164.12 : x
  2. Step 2: Convert to fraction form
    7,700.88/10,627.20 = 4,164.12/x
  3. Step 3: Cross multiply
    7,700.88x = 10,627.20 × 4,164.12
  4. Step 4: Simplify right side
    7,700.88x = 44,252,936.06
  5. Step 5: Solve for x
    x = 44,252,936.06/7,700.88
  6. Step 6: Final answer
    x = 5,746.48

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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.