Home / 3,615.84-4,989.86-2,043.92

Finding the Fourth Proportional to 3,615.84, 4,989.86 and 2,043.92

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Solution

The fourth proportional to 3,615.84, 4,989.86 and 2,043.92 is: 2,820.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,615.84 : 4,989.86 = 2,043.92 : x
  2. Step 2: Convert to fraction form
    3,615.84/4,989.86 = 2,043.92/x
  3. Step 3: Cross multiply
    3,615.84x = 4,989.86 × 2,043.92
  4. Step 4: Simplify right side
    3,615.84x = 10,198,874.65
  5. Step 5: Solve for x
    x = 10,198,874.65/3,615.84
  6. Step 6: Final answer
    x = 2,820.61

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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.