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Finding the Fourth Proportional to 3,323.88, 4,985.40 and 2,087.52

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Solution

The fourth proportional to 3,323.88, 4,985.40 and 2,087.52 is: 3,131.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,323.88 : 4,985.40 = 2,087.52 : x
  2. Step 2: Convert to fraction form
    3,323.88/4,985.40 = 2,087.52/x
  3. Step 3: Cross multiply
    3,323.88x = 4,985.40 × 2,087.52
  4. Step 4: Simplify right side
    3,323.88x = 10,407,122.21
  5. Step 5: Solve for x
    x = 10,407,122.21/3,323.88
  6. Step 6: Final answer
    x = 3,131.02

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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.