Home / 7,740.13-11,611.95-2,546.05

Finding the Fourth Proportional to 7,740.13, 11,611.95 and 2,546.05

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Solution

The fourth proportional to 7,740.13, 11,611.95 and 2,546.05 is: 3,819.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,740.13 : 11,611.95 = 2,546.05 : x
  2. Step 2: Convert to fraction form
    7,740.13/11,611.95 = 2,546.05/x
  3. Step 3: Cross multiply
    7,740.13x = 11,611.95 × 2,546.05
  4. Step 4: Simplify right side
    7,740.13x = 29,564,605.30
  5. Step 5: Solve for x
    x = 29,564,605.30/7,740.13
  6. Step 6: Final answer
    x = 3,819.65

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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.