Home / 6,990.71-10,487.68-2,611.04

Finding the Fourth Proportional to 6,990.71, 10,487.68 and 2,611.04

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Solution

The fourth proportional to 6,990.71, 10,487.68 and 2,611.04 is: 3,917.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,990.71 : 10,487.68 = 2,611.04 : x
  2. Step 2: Convert to fraction form
    6,990.71/10,487.68 = 2,611.04/x
  3. Step 3: Cross multiply
    6,990.71x = 10,487.68 × 2,611.04
  4. Step 4: Simplify right side
    6,990.71x = 27,383,693.02
  5. Step 5: Solve for x
    x = 27,383,693.02/6,990.71
  6. Step 6: Final answer
    x = 3,917.16

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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.