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Finding the Fourth Proportional to 2,988.94, 4,124.37 and 1,662.46

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Solution

The fourth proportional to 2,988.94, 4,124.37 and 1,662.46 is: 2,293.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,988.94 : 4,124.37 = 1,662.46 : x
  2. Step 2: Convert to fraction form
    2,988.94/4,124.37 = 1,662.46/x
  3. Step 3: Cross multiply
    2,988.94x = 4,124.37 × 1,662.46
  4. Step 4: Simplify right side
    2,988.94x = 6,856,600.15
  5. Step 5: Solve for x
    x = 6,856,600.15/2,988.94
  6. Step 6: Final answer
    x = 2,293.99

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.