Home / 3,489.30-4,816.94-2,740.86

Finding the Fourth Proportional to 3,489.30, 4,816.94 and 2,740.86

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Solution

The fourth proportional to 3,489.30, 4,816.94 and 2,740.86 is: 3,783.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,489.30 : 4,816.94 = 2,740.86 : x
  2. Step 2: Convert to fraction form
    3,489.30/4,816.94 = 2,740.86/x
  3. Step 3: Cross multiply
    3,489.30x = 4,816.94 × 2,740.86
  4. Step 4: Simplify right side
    3,489.30x = 13,202,544.46
  5. Step 5: Solve for x
    x = 13,202,544.46/3,489.30
  6. Step 6: Final answer
    x = 3,783.72

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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.