Home / 7,724.72-10,665.96-4,744.64

Finding the Fourth Proportional to 7,724.72, 10,665.96 and 4,744.64

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Solution

The fourth proportional to 7,724.72, 10,665.96 and 4,744.64 is: 6,551.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,724.72 : 10,665.96 = 4,744.64 : x
  2. Step 2: Convert to fraction form
    7,724.72/10,665.96 = 4,744.64/x
  3. Step 3: Cross multiply
    7,724.72x = 10,665.96 × 4,744.64
  4. Step 4: Simplify right side
    7,724.72x = 50,606,140.45
  5. Step 5: Solve for x
    x = 50,606,140.45/7,724.72
  6. Step 6: Final answer
    x = 6,551.19

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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.