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Finding the Fourth Proportional to 7,804.39, 10,769.90 and 4,267.60

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Solution

The fourth proportional to 7,804.39, 10,769.90 and 4,267.60 is: 5,889.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,804.39 : 10,769.90 = 4,267.60 : x
  2. Step 2: Convert to fraction form
    7,804.39/10,769.90 = 4,267.60/x
  3. Step 3: Cross multiply
    7,804.39x = 10,769.90 × 4,267.60
  4. Step 4: Simplify right side
    7,804.39x = 45,961,614.57
  5. Step 5: Solve for x
    x = 45,961,614.57/7,804.39
  6. Step 6: Final answer
    x = 5,889.20

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.