Home / 7,740.42-11,609.88-2,193.72

Finding the Fourth Proportional to 7,740.42, 11,609.88 and 2,193.72

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Solution

The fourth proportional to 7,740.42, 11,609.88 and 2,193.72 is: 3,290.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,740.42 : 11,609.88 = 2,193.72 : x
  2. Step 2: Convert to fraction form
    7,740.42/11,609.88 = 2,193.72/x
  3. Step 3: Cross multiply
    7,740.42x = 11,609.88 × 2,193.72
  4. Step 4: Simplify right side
    7,740.42x = 25,468,825.95
  5. Step 5: Solve for x
    x = 25,468,825.95/7,740.42
  6. Step 6: Final answer
    x = 3,290.37

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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.