Home / 5,280.31-7,286.84-2,922.45

Finding the Fourth Proportional to 5,280.31, 7,286.84 and 2,922.45

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Solution

The fourth proportional to 5,280.31, 7,286.84 and 2,922.45 is: 4,032.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,280.31 : 7,286.84 = 2,922.45 : x
  2. Step 2: Convert to fraction form
    5,280.31/7,286.84 = 2,922.45/x
  3. Step 3: Cross multiply
    5,280.31x = 7,286.84 × 2,922.45
  4. Step 4: Simplify right side
    5,280.31x = 21,295,410.95
  5. Step 5: Solve for x
    x = 21,295,410.95/5,280.31
  6. Step 6: Final answer
    x = 4,032.99

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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.