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Finding the Fourth Proportional to 7,751.68, 10,697.60 and 4,440.32

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Solution

The fourth proportional to 7,751.68, 10,697.60 and 4,440.32 is: 6,127.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,751.68 : 10,697.60 = 4,440.32 : x
  2. Step 2: Convert to fraction form
    7,751.68/10,697.60 = 4,440.32/x
  3. Step 3: Cross multiply
    7,751.68x = 10,697.60 × 4,440.32
  4. Step 4: Simplify right side
    7,751.68x = 47,500,767.23
  5. Step 5: Solve for x
    x = 47,500,767.23/7,751.68
  6. Step 6: Final answer
    x = 6,127.80

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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.