Home / 5,280.06-7,286.30-2,921.88

Finding the Fourth Proportional to 5,280.06, 7,286.30 and 2,921.88

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Solution

The fourth proportional to 5,280.06, 7,286.30 and 2,921.88 is: 4,032.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,280.06 : 7,286.30 = 2,921.88 : x
  2. Step 2: Convert to fraction form
    5,280.06/7,286.30 = 2,921.88/x
  3. Step 3: Cross multiply
    5,280.06x = 7,286.30 × 2,921.88
  4. Step 4: Simplify right side
    5,280.06x = 21,289,694.24
  5. Step 5: Solve for x
    x = 21,289,694.24/5,280.06
  6. Step 6: Final answer
    x = 4,032.09

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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.