Home / 3,289.98-4,539.60-1,963.61

Finding the Fourth Proportional to 3,289.98, 4,539.60 and 1,963.61

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Solution

The fourth proportional to 3,289.98, 4,539.60 and 1,963.61 is: 2,709.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,289.98 : 4,539.60 = 1,963.61 : x
  2. Step 2: Convert to fraction form
    3,289.98/4,539.60 = 1,963.61/x
  3. Step 3: Cross multiply
    3,289.98x = 4,539.60 × 1,963.61
  4. Step 4: Simplify right side
    3,289.98x = 8,913,981.26
  5. Step 5: Solve for x
    x = 8,913,981.26/3,289.98
  6. Step 6: Final answer
    x = 2,709.43

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1.5x scale

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.