Home / 3,205.25-4,420.20-2,084.91

Finding the Fourth Proportional to 3,205.25, 4,420.20 and 2,084.91

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Solution

The fourth proportional to 3,205.25, 4,420.20 and 2,084.91 is: 2,875.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,205.25 : 4,420.20 = 2,084.91 : x
  2. Step 2: Convert to fraction form
    3,205.25/4,420.20 = 2,084.91/x
  3. Step 3: Cross multiply
    3,205.25x = 4,420.20 × 2,084.91
  4. Step 4: Simplify right side
    3,205.25x = 9,215,719.18
  5. Step 5: Solve for x
    x = 9,215,719.18/3,205.25
  6. Step 6: Final answer
    x = 2,875.20

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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.