Home / 2,989.32-4,125.20-1,662.96

Finding the Fourth Proportional to 2,989.32, 4,125.20 and 1,662.96

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Solution

The fourth proportional to 2,989.32, 4,125.20 and 1,662.96 is: 2,294.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,989.32 : 4,125.20 = 1,662.96 : x
  2. Step 2: Convert to fraction form
    2,989.32/4,125.20 = 1,662.96/x
  3. Step 3: Cross multiply
    2,989.32x = 4,125.20 × 1,662.96
  4. Step 4: Simplify right side
    2,989.32x = 6,860,042.59
  5. Step 5: Solve for x
    x = 6,860,042.59/2,989.32
  6. Step 6: Final answer
    x = 2,294.85

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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.