Home / 7,485.89-11,228.85-2,291.75

Finding the Fourth Proportional to 7,485.89, 11,228.85 and 2,291.75

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Solution

The fourth proportional to 7,485.89, 11,228.85 and 2,291.75 is: 3,437.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,485.89 : 11,228.85 = 2,291.75 : x
  2. Step 2: Convert to fraction form
    7,485.89/11,228.85 = 2,291.75/x
  3. Step 3: Cross multiply
    7,485.89x = 11,228.85 × 2,291.75
  4. Step 4: Simplify right side
    7,485.89x = 25,733,716.99
  5. Step 5: Solve for x
    x = 25,733,716.99/7,485.89
  6. Step 6: Final answer
    x = 3,437.63

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Similar ratio
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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.