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Finding the Fourth Proportional to 6,985.88, 10,489.16 and 2,833.99

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Solution

The fourth proportional to 6,985.88, 10,489.16 and 2,833.99 is: 4,255.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,985.88 : 10,489.16 = 2,833.99 : x
  2. Step 2: Convert to fraction form
    6,985.88/10,489.16 = 2,833.99/x
  3. Step 3: Cross multiply
    6,985.88x = 10,489.16 × 2,833.99
  4. Step 4: Simplify right side
    6,985.88x = 29,726,155.41
  5. Step 5: Solve for x
    x = 29,726,155.41/6,985.88
  6. Step 6: Final answer
    x = 4,255.18

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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.