Home / 7,200.31-10,776.07-4,428.73

Finding the Fourth Proportional to 7,200.31, 10,776.07 and 4,428.73

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Solution

The fourth proportional to 7,200.31, 10,776.07 and 4,428.73 is: 6,628.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,200.31 : 10,776.07 = 4,428.73 : x
  2. Step 2: Convert to fraction form
    7,200.31/10,776.07 = 4,428.73/x
  3. Step 3: Cross multiply
    7,200.31x = 10,776.07 × 4,428.73
  4. Step 4: Simplify right side
    7,200.31x = 47,724,304.49
  5. Step 5: Solve for x
    x = 47,724,304.49/7,200.31
  6. Step 6: Final answer
    x = 6,628.09

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1.5x scale

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.