Home / 2,740.62-4,110.00-891.28

Finding the Fourth Proportional to 2,740.62, 4,110.00 and 891.28

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Solution

The fourth proportional to 2,740.62, 4,110.00 and 891.28 is: 1,336.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,740.62 : 4,110.00 = 891.28 : x
  2. Step 2: Convert to fraction form
    2,740.62/4,110.00 = 891.28/x
  3. Step 3: Cross multiply
    2,740.62x = 4,110.00 × 891.28
  4. Step 4: Simplify right side
    2,740.62x = 3,663,157.30
  5. Step 5: Solve for x
    x = 3,663,157.30/2,740.62
  6. Step 6: Final answer
    x = 1,336.62

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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.