Home / 7,589.21-11,388.93-2,658.89

Finding the Fourth Proportional to 7,589.21, 11,388.93 and 2,658.89

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Solution

The fourth proportional to 7,589.21, 11,388.93 and 2,658.89 is: 3,990.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,589.21 : 11,388.93 = 2,658.89 : x
  2. Step 2: Convert to fraction form
    7,589.21/11,388.93 = 2,658.89/x
  3. Step 3: Cross multiply
    7,589.21x = 11,388.93 × 2,658.89
  4. Step 4: Simplify right side
    7,589.21x = 30,281,912.09
  5. Step 5: Solve for x
    x = 30,281,912.09/7,589.21
  6. Step 6: Final answer
    x = 3,990.13

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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.