Home / 7,425.99-11,132.51-2,805.75

Finding the Fourth Proportional to 7,425.99, 11,132.51 and 2,805.75

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Solution

The fourth proportional to 7,425.99, 11,132.51 and 2,805.75 is: 4,206.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,425.99 : 11,132.51 = 2,805.75 : x
  2. Step 2: Convert to fraction form
    7,425.99/11,132.51 = 2,805.75/x
  3. Step 3: Cross multiply
    7,425.99x = 11,132.51 × 2,805.75
  4. Step 4: Simplify right side
    7,425.99x = 31,235,025.90
  5. Step 5: Solve for x
    x = 31,235,025.90/7,425.99
  6. Step 6: Final answer
    x = 4,206.18

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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.