Home / 7,769.28-11,652.80-2,574.48

Finding the Fourth Proportional to 7,769.28, 11,652.80 and 2,574.48

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Solution

The fourth proportional to 7,769.28, 11,652.80 and 2,574.48 is: 3,861.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,769.28 : 11,652.80 = 2,574.48 : x
  2. Step 2: Convert to fraction form
    7,769.28/11,652.80 = 2,574.48/x
  3. Step 3: Cross multiply
    7,769.28x = 11,652.80 × 2,574.48
  4. Step 4: Simplify right side
    7,769.28x = 29,999,900.54
  5. Step 5: Solve for x
    x = 29,999,900.54/7,769.28
  6. Step 6: Final answer
    x = 3,861.35

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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.