Home / 3,219.84-4,442.04-2,170.08

Finding the Fourth Proportional to 3,219.84, 4,442.04 and 2,170.08

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Solution

The fourth proportional to 3,219.84, 4,442.04 and 2,170.08 is: 2,993.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,219.84 : 4,442.04 = 2,170.08 : x
  2. Step 2: Convert to fraction form
    3,219.84/4,442.04 = 2,170.08/x
  3. Step 3: Cross multiply
    3,219.84x = 4,442.04 × 2,170.08
  4. Step 4: Simplify right side
    3,219.84x = 9,639,582.16
  5. Step 5: Solve for x
    x = 9,639,582.16/3,219.84
  6. Step 6: Final answer
    x = 2,993.81

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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.