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Finding the Fourth Proportional to 7,720.57, 10,650.47 and 4,883.16

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Solution

The fourth proportional to 7,720.57, 10,650.47 and 4,883.16 is: 6,736.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,720.57 : 10,650.47 = 4,883.16 : x
  2. Step 2: Convert to fraction form
    7,720.57/10,650.47 = 4,883.16/x
  3. Step 3: Cross multiply
    7,720.57x = 10,650.47 × 4,883.16
  4. Step 4: Simplify right side
    7,720.57x = 52,007,924.67
  5. Step 5: Solve for x
    x = 52,007,924.67/7,720.57
  6. Step 6: Final answer
    x = 6,736.28

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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.