Home / 7,272.28-10,908.96-2,078.56

Finding the Fourth Proportional to 7,272.28, 10,908.96 and 2,078.56

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Solution

The fourth proportional to 7,272.28, 10,908.96 and 2,078.56 is: 3,117.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,272.28 : 10,908.96 = 2,078.56 : x
  2. Step 2: Convert to fraction form
    7,272.28/10,908.96 = 2,078.56/x
  3. Step 3: Cross multiply
    7,272.28x = 10,908.96 × 2,078.56
  4. Step 4: Simplify right side
    7,272.28x = 22,674,927.90
  5. Step 5: Solve for x
    x = 22,674,927.90/7,272.28
  6. Step 6: Final answer
    x = 3,117.99

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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.